18,002
18,002 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 20,081
- Recamán's sequence
- a(8,156) = 18,002
- Square (n²)
- 324,072,004
- Cube (n³)
- 5,833,944,216,008
- Divisor count
- 4
- σ(n) — sum of divisors
- 27,006
- φ(n) — Euler's totient
- 9,000
- Sum of prime factors
- 9,003
Primality
Prime factorization: 2 × 9001
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighteen thousand two
- Ordinal
- 18002nd
- Binary
- 100011001010010
- Octal
- 43122
- Hexadecimal
- 0x4652
- Base64
- RlI=
- One's complement
- 47,533 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 · 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓏺𓏺
- Greek (Milesian)
- ͵ιηβʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋠·𝋢
- Chinese
- 一萬八千零二
- Chinese (financial)
- 壹萬捌仟零貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,002 = 6
- e — Euler's number (e)
- Digit 18,002 = 6
- φ — Golden ratio (φ)
- Digit 18,002 = 4
- √2 — Pythagoras's (√2)
- Digit 18,002 = 4
- ln 2 — Natural log of 2
- Digit 18,002 = 6
- γ — Euler-Mascheroni (γ)
- Digit 18,002 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18002, here are decompositions:
- 13 + 17989 = 18002
- 31 + 17971 = 18002
- 43 + 17959 = 18002
- 73 + 17929 = 18002
- 79 + 17923 = 18002
- 139 + 17863 = 18002
- 151 + 17851 = 18002
- 163 + 17839 = 18002
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 99 92 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.82.
- Address
- 0.0.70.82
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.82
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 18002 first appears in π at position 213,138 of the decimal expansion (the 213,138ordinal-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.