18,004
18,004 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 40,081
- Recamán's sequence
- a(8,152) = 18,004
- Square (n²)
- 324,144,016
- Cube (n³)
- 5,835,888,864,064
- Divisor count
- 12
- σ(n) — sum of divisors
- 36,064
- φ(n) — Euler's totient
- 7,704
- Sum of prime factors
- 654
Primality
Prime factorization: 2 2 × 7 × 643
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighteen thousand four
- Ordinal
- 18004th
- Binary
- 100011001010100
- Octal
- 43124
- Hexadecimal
- 0x4654
- Base64
- RlQ=
- One's complement
- 47,531 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 · 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιηδʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋠·𝋤
- Chinese
- 一萬八千零四
- Chinese (financial)
- 壹萬捌仟零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,004 = 6
- e — Euler's number (e)
- Digit 18,004 = 6
- φ — Golden ratio (φ)
- Digit 18,004 = 7
- √2 — Pythagoras's (√2)
- Digit 18,004 = 6
- ln 2 — Natural log of 2
- Digit 18,004 = 4
- γ — Euler-Mascheroni (γ)
- Digit 18,004 = 9
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18004, here are decompositions:
- 17 + 17987 = 18004
- 23 + 17981 = 18004
- 47 + 17957 = 18004
- 83 + 17921 = 18004
- 101 + 17903 = 18004
- 113 + 17891 = 18004
- 167 + 17837 = 18004
- 197 + 17807 = 18004
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 99 94 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.84.
- Address
- 0.0.70.84
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.84
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 18004 first appears in π at position 23,738 of the decimal expansion (the 23,738ordinal-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.