20,008
20,008 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 80,002
- Square (n²)
- 400,320,064
- Cube (n³)
- 8,009,603,840,512
- Divisor count
- 16
- σ(n) — sum of divisors
- 39,060
- φ(n) — Euler's totient
- 9,600
- Sum of prime factors
- 108
Primality
Prime factorization: 2 3 × 41 × 61
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- twenty thousand eight
- Ordinal
- 20008th
- Binary
- 100111000101000
- Octal
- 47050
- Hexadecimal
- 0x4E28
- Base64
- Tig=
- One's complement
- 45,527 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵κηʹ
- Mayan (base 20)
- 𝋢·𝋪·𝋠·𝋨
- Chinese
- 二萬零八
- Chinese (financial)
- 貳萬零捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 20,008 = 5
- e — Euler's number (e)
- Digit 20,008 = 6
- φ — Golden ratio (φ)
- Digit 20,008 = 2
- √2 — Pythagoras's (√2)
- Digit 20,008 = 1
- ln 2 — Natural log of 2
- Digit 20,008 = 7
- γ — Euler-Mascheroni (γ)
- Digit 20,008 = 2
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 20008, here are decompositions:
- 11 + 19997 = 20008
- 17 + 19991 = 20008
- 29 + 19979 = 20008
- 47 + 19961 = 20008
- 59 + 19949 = 20008
- 71 + 19937 = 20008
- 89 + 19919 = 20008
- 167 + 19841 = 20008
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 B8 A8 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.78.40.
- Address
- 0.0.78.40
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.78.40
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 20008 first appears in π at position 127,099 of the decimal expansion (the 127,099ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.