18,006
18,006 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 60,081
- Flips to (rotate 180°)
- 90,081
- Recamán's sequence
- a(8,148) = 18,006
- Square (n²)
- 324,216,036
- Cube (n³)
- 5,837,833,944,216
- Divisor count
- 8
- σ(n) — sum of divisors
- 36,024
- φ(n) — Euler's totient
- 6,000
- Sum of prime factors
- 3,006
Primality
Prime factorization: 2 × 3 × 3001
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighteen thousand six
- Ordinal
- 18006th
- Binary
- 100011001010110
- Octal
- 43126
- Hexadecimal
- 0x4656
- Base64
- RlY=
- One's complement
- 47,529 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 · 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιηϛʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋠·𝋦
- Chinese
- 一萬八千零六
- Chinese (financial)
- 壹萬捌仟零陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,006 = 4
- e — Euler's number (e)
- Digit 18,006 = 0
- φ — Golden ratio (φ)
- Digit 18,006 = 5
- √2 — Pythagoras's (√2)
- Digit 18,006 = 4
- ln 2 — Natural log of 2
- Digit 18,006 = 2
- γ — Euler-Mascheroni (γ)
- Digit 18,006 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18006, here are decompositions:
- 17 + 17989 = 18006
- 19 + 17987 = 18006
- 29 + 17977 = 18006
- 47 + 17959 = 18006
- 67 + 17939 = 18006
- 83 + 17923 = 18006
- 97 + 17909 = 18006
- 103 + 17903 = 18006
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 99 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.86.
- Address
- 0.0.70.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.86
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 18006 first appears in π at position 211,728 of the decimal expansion (the 211,728ordinal-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.