18,080
18,080 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 8,081
- Flips to (rotate 180°)
- 8,081
- Recamán's sequence
- a(15,896) = 18,080
- Square (n²)
- 326,886,400
- Cube (n³)
- 5,910,106,112,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 43,092
- φ(n) — Euler's totient
- 7,168
- Sum of prime factors
- 128
Primality
Prime factorization: 2 5 × 5 × 113
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eighteen thousand eighty
- Ordinal
- 18080th
- Binary
- 100011010100000
- Octal
- 43240
- Hexadecimal
- 0x46A0
- Base64
- RqA=
- One's complement
- 47,455 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ιηπʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋤·𝋠
- Chinese
- 一萬八千零八十
- Chinese (financial)
- 壹萬捌仟零捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,080 = 5
- e — Euler's number (e)
- Digit 18,080 = 1
- φ — Golden ratio (φ)
- Digit 18,080 = 6
- √2 — Pythagoras's (√2)
- Digit 18,080 = 0
- ln 2 — Natural log of 2
- Digit 18,080 = 8
- γ — Euler-Mascheroni (γ)
- Digit 18,080 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18080, here are decompositions:
- 3 + 18077 = 18080
- 19 + 18061 = 18080
- 31 + 18049 = 18080
- 37 + 18043 = 18080
- 67 + 18013 = 18080
- 103 + 17977 = 18080
- 109 + 17971 = 18080
- 151 + 17929 = 18080
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 9A A0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.160.
- Address
- 0.0.70.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.160
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 18080 first appears in π at position 26,034 of the decimal expansion (the 26,034ordinal-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.