18,118
18,118 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 64
- Digital root
- 1
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 81,181
- Flips to (rotate 180°)
- 81,181
- Recamán's sequence
- a(15,668) = 18,118
- Square (n²)
- 328,261,924
- Cube (n³)
- 5,947,449,539,032
- Divisor count
- 4
- σ(n) — sum of divisors
- 27,180
- φ(n) — Euler's totient
- 9,058
- Sum of prime factors
- 9,061
Primality
Prime factorization: 2 × 9059
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighteen thousand one hundred eighteen
- Ordinal
- 18118th
- Binary
- 100011011000110
- Octal
- 43306
- Hexadecimal
- 0x46C6
- Base64
- RsY=
- One's complement
- 47,417 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιηριηʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋥·𝋲
- Chinese
- 一萬八千一百一十八
- Chinese (financial)
- 壹萬捌仟壹佰壹拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,118 = 3
- e — Euler's number (e)
- Digit 18,118 = 2
- φ — Golden ratio (φ)
- Digit 18,118 = 7
- √2 — Pythagoras's (√2)
- Digit 18,118 = 8
- ln 2 — Natural log of 2
- Digit 18,118 = 3
- γ — Euler-Mascheroni (γ)
- Digit 18,118 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18118, here are decompositions:
- 29 + 18089 = 18118
- 41 + 18077 = 18118
- 59 + 18059 = 18118
- 71 + 18047 = 18118
- 131 + 17987 = 18118
- 137 + 17981 = 18118
- 179 + 17939 = 18118
- 197 + 17921 = 18118
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 9B 86 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.198.
- Address
- 0.0.70.198
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.198
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 18118 first appears in π at position 118,521 of the decimal expansion (the 118,521ordinal-suffix:st 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.