# Number 0

Number 0 spell 🔊, write in words: zero. Ordinal number 0th is said 🔊 and write: zeroth. The meaning of the number 0 in Maths: Is it Prime? Factorization and prime factors tree. The square root and cube root of 0. What is 0 in computer science, numerology, codes and images, writing and naming in other languages. Other interesting facts, comments (1) related to 0.

## What is 0 in other units

The decimal (Arabic) number 0 converted to a Roman number is (The Romans did not know zero). Roman and decimal number conversions.
 The number 0 converted to a Mayan number is Decimal and Mayan number conversions.

### Codes and images of the number 0

Number 0 morse code: -----
Sign language for number 0:
Number 0 in braille:
 Images of the number Image (1) of the number Image (2) of the number More images, other sizes, codes and colors ...

Year zero does not exist in the Anno Domini system usually used to number years in the Gregorian calendar and in its predecessor, the Julian calendar. In this system, the year 1 BC is followed by AD 1.

## Mathematics of no. 0

### Multiplications

#### Multiplication table of 0

0 multiplied by two equals 0 (0 x 2 = 0).
0 multiplied by three equals 0 (0 x 3 = 0).
0 multiplied by four equals 0 (0 x 4 = 0).
0 multiplied by five equals 0 (0 x 5 = 0).
0 multiplied by six equals 0 (0 x 6 = 0).
0 multiplied by seven equals 0 (0 x 7 = 0).
0 multiplied by eight equals 0 (0 x 8 = 0).
0 multiplied by nine equals 0 (0 x 9 = 0).
show multiplications by 6, 7, 8, 9 ...

### Calculator

 0

#### Is Prime?

The number 0 is not a prime number.

#### Powers

The second power of 02 is 0.
The third power of 03 is 0.

### Trigonometric functions

The cosine of 0 is 1.
The sine of 0 is 0.
The tangent of 0 is 0.

### Properties of the number 0

Is a Friedman number: No
Is a Fibonacci number: Yes
Is a Bell number: No
Is a palindromic number: No
Is a pentagonal number: No
Is a perfect number: No

More math properties ...

## Number 0 in Computer Science

Code typeCode value
Port 0/TCP, UDPReserved; do not use (but is a permissible source port value if the sending process does not expect messages in response)
Unix timeUnix time 0 is equal to Thursday Jan. 1, 1970, 12:00 a.m. GMT
IPv4, IPv6Number 0 internet address in dotted format v4 0.0.0.0, v6 ::
0 Decimal = 0 Binary
0 Decimal = 0 Ternary
0 Decimal = 0 Octal
0 Decimal = 0 Hexadecimal (0x0 hex)
0 BASE64MA==
0 MD5cfcd208495d565ef66e7dff9f98764da
0 SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
0 SHA224dfd5f9139a820075df69d7895015360b76d0360f3d4b77a845689614
0 SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
0 SHA3845f91550edb03f0bb8917da57f0f8818976f5da971307b7ee4886bb951c4891a1f16f840dae8f655aa5df718884ebc15b
More SHA codes related to the number 0 ...

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## Numerology 0

In classical numerology the zero does not exists, for example 300 is reduced to the meaning of the number 3. Read more about numerology 0 ...

## Interesting facts about the number 0

### Areas, mountains and surfaces

• The total area of Monaco is 0.78 square miles (2.02 km²)
• The total area of Vatican City is 0.19 square miles (0.49 km²)

### Jokes

• Chuck Norris can divide by zero.

### Mathematics

• It is the only integer (actually, the only real number) that is neither negative nor positive. The question whether 'zero' is odd or even seems to be totally subjective. But technically, 0 should be considered an even number. All even numbers can be expressed in the algebraic form 2n, where n is any integer, positive, negative or zero. Thus 0 = 2 x 0, 2 = 2 x 1, 4 = 2 x 2, and so on. All odd numbers can be expressed in the form 2n+1, thus 1 = (2 x 0) + 1, 3 = (2 x 1) + 1, 5 = (2 x 2) + 1, etc. Zero cannot be odd, since there is no whole number n such that 2n+1 = 0.
• 0 is the additive identity.

### Religions

• ZEN circle, states of ZEN student mind 0°, 90°, 180°, 270°, 360°

This circle is divided into four parts.

The first part is from 0 degrees to 90 degrees. In this part 1 + 2 = 3. The mind is attached to it’s thinking, it clings to conceptions and has much suffering. Here there is name and form attachment.

From 90 degrees to 180 degrees the mind understands that all things that have appearance are transient. So form is emptiness, emptiness is form. 1=0 0=1. Do you understand? Before you were born you were 0. Now you are 1. In the future you will die and you will again be 0. Therefore, form is empty, emptiness is form.

At 180 degrees you are nothing, there is only emptiness, so there is no Buddha, no Universe, no energy, no God, no you, no I. Many people have conceptions of oneness. For them Buddha, Universal Energy, and God are all One. So, they have an emptiness attachment. This emptiness attachment is thinking. You have an emptiness attachment.

Source: ZEN Teaching Letters

### Sports

• Love is a score of 0 in tennis.
• The best athletes to wear number 0
Russell Westbrook, NBA; Al Oliver, MLB; Gilbert Arenas, NBA; Jim Otto, NFL; Robert Parish, NBA; Ken Burrough, NFL

## № 0 in other languages

How to say or write the number zero in Spanish, German, French and other languages.
 Spanish: 🔊 (número 0) cero German: 🔊 (Nummer 0) null French: 🔊 (nombre 0) zéro Portuguese: 🔊 (número 0) zero Hindi: 🔊 (संख्या 0) शून्य Chinese: 🔊 (数 0) 零 Arabian: 🔊 (عدد 0) صفر Czech: 🔊 (číslo 0) nula Korean: 🔊 (번호 0) 영 Danish: 🔊 (nummer 0) nul Hebrew: (מספר 0) אפס Dutch: 🔊 (nummer 0) nul Japanese: 🔊 (数 0) 零 Indonesian: 🔊 (jumlah 0) nol Italian: 🔊 (numero 0) zero Norwegian: 🔊 (nummer 0) null Polish: 🔊 (liczba 0) zero Russian: 🔊 (номер 0) ноль Turkish: 🔊 (numara 0) sıfır Thai: 🔊 (จำนวน 0) ศูนย์ Ukrainian: 🔊 (номер 0) нуль Vietnamese: 🔊 (con số 0) không Other languages ...

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