18,104
18,104 is a composite number, even.
18,104 (eighteen thousand one hundred four) is an even 5-digit number. It is a composite number with 16 divisors, and factors as 2³ × 31 × 73. Written other ways, in hexadecimal, 0x46B8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 40,181
- Recamán's sequence
- a(15,848) = 18,104
- Square (n²)
- 327,754,816
- Cube (n³)
- 5,933,673,188,864
- Divisor count
- 16
- σ(n) — sum of divisors
- 35,520
- φ(n) — Euler's totient
- 8,640
- Sum of prime factors
- 110
Primality
Prime factorization: 2 3 × 31 × 73
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√18,104 = [134; (1, 1, 4, 2, 1, 1, 4, 3, 3, 10, 2, 6, 11, 1, 1, 4, 1, 32, 1, 4, 1, 1, 11, 6, …)]
Period length 36 — the block in parentheses repeats forever.
Representations
- In words
- eighteen thousand one hundred four
- Ordinal
- 18104th
- Binary
- 100011010111000
- Octal
- 43270
- Hexadecimal
- 0x46B8
- Base64
- Rrg=
- One's complement
- 47,431 (16-bit)
- Scientific notation
- 1.8104 × 10⁴
- As a duration
- 18,104 s = 5 hours, 1 minute, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ιηρδʹ
- Mayan (base 20)
- 𝋢·𝋥·𝋥·𝋤
- Chinese
- 一萬八千一百零四
- Chinese (financial)
- 壹萬捌仟壹佰零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,104 = 4
- e — Euler's number (e)
- Digit 18,104 = 9
- φ — Golden ratio (φ)
- Digit 18,104 = 7
- √2 — Pythagoras's (√2)
- Digit 18,104 = 3
- ln 2 — Natural log of 2
- Digit 18,104 = 4
- γ — Euler-Mascheroni (γ)
- Digit 18,104 = 5
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18104, here are decompositions:
- 7 + 18097 = 18104
- 43 + 18061 = 18104
- 61 + 18043 = 18104
- 127 + 17977 = 18104
- 181 + 17923 = 18104
- 193 + 17911 = 18104
- 223 + 17881 = 18104
- 241 + 17863 = 18104
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 9A B8 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.184.
- Address
- 0.0.70.184
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.70.184
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 18,104 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C♯10 (17739.7 Hz, +35¢)
- Scientific pitch (C4 = 256 Hz): D10 (18390.4 Hz, -27¢)
- Baroque pitch (A4 = 415 Hz): D10 (17726.7 Hz, +36¢)
The digit sequence 18104 first appears in π at position 38,651 of the decimal expansion (the 38,651ordinal-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.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.