18,422
18,422 is a composite number, even.
18,422 (eighteen thousand four hundred twenty-two) is an even 5-digit number. It is a composite number with 8 divisors, and factors as 2 × 61 × 151. Written other ways, in hexadecimal, 0x47F6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 128
- Digital root
- 8
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 22,481
- Recamán's sequence
- a(13,688) = 18,422
- Square (n²)
- 339,370,084
- Cube (n³)
- 6,251,875,687,448
- Divisor count
- 8
- σ(n) — sum of divisors
- 28,272
- φ(n) — Euler's totient
- 9,000
- Sum of prime factors
- 214
Primality
Prime factorization: 2 × 61 × 151
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√18,422 = [135; (1, 2, 1, 2, 20, 1, 1, 13, 1, 3, 2, 4, 4, 4, 2, 3, 1, 13, 1, 1, 20, 2, 1, 2, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- eighteen thousand four hundred twenty-two
- Ordinal
- 18422nd
- Binary
- 100011111110110
- Octal
- 43766
- Hexadecimal
- 0x47F6
- Base64
- R/Y=
- One's complement
- 47,113 (16-bit)
- Scientific notation
- 1.8422 × 10⁴
- As a duration
- 18,422 s = 5 hours, 7 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ιηυκβʹ
- Mayan (base 20)
- 𝋢·𝋦·𝋡·𝋢
- Chinese
- 一萬八千四百二十二
- Chinese (financial)
- 壹萬捌仟肆佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 18,422 = 7
- e — Euler's number (e)
- Digit 18,422 = 8
- φ — Golden ratio (φ)
- Digit 18,422 = 4
- √2 — Pythagoras's (√2)
- Digit 18,422 = 6
- ln 2 — Natural log of 2
- Digit 18,422 = 0
- γ — Euler-Mascheroni (γ)
- Digit 18,422 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 18422, here are decompositions:
- 43 + 18379 = 18422
- 109 + 18313 = 18422
- 193 + 18229 = 18422
- 199 + 18223 = 18422
- 211 + 18211 = 18422
- 223 + 18199 = 18422
- 241 + 18181 = 18422
- 373 + 18049 = 18422
Showing the first eight; more decompositions exist.
UTF-8 encoding: E4 9F B6 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.71.246.
- Address
- 0.0.71.246
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.71.246
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 18,422 Hz is closest to:
- Concert pitch (A4 = 440 Hz): D10 (18794.5 Hz, -35¢)
- Scientific pitch (C4 = 256 Hz): D10 (18390.4 Hz, +3¢)
- Baroque pitch (A4 = 415 Hz): D♯10 (18780.8 Hz, -33¢)
The digit sequence 18422 first appears in π at position 106,463 of the decimal expansion (the 106,463ordinal-suffix:rd 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.