8,442
8,442 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 18
- Digit product
- 256
- Digital root
- 9
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 2,448
- Recamán's sequence
- a(51,959) = 8,442
- Square (n²)
- 71,267,364
- Cube (n³)
- 601,639,086,888
- Divisor count
- 24
- σ(n) — sum of divisors
- 21,216
- φ(n) — Euler's totient
- 2,376
- Sum of prime factors
- 82
Primality
Prime factorization: 2 × 3 2 × 7 × 67
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- eight thousand four hundred forty-two
- Ordinal
- 8442nd
- Binary
- 10000011111010
- Octal
- 20372
- Hexadecimal
- 0x20FA
- Base64
- IPo=
- One's complement
- 57,093 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ηυμβʹ
- Mayan (base 20)
- 𝋡·𝋡·𝋢·𝋢
- Chinese
- 八千四百四十二
- Chinese (financial)
- 捌仟肆佰肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 8,442 = 0
- e — Euler's number (e)
- Digit 8,442 = 9
- φ — Golden ratio (φ)
- Digit 8,442 = 3
- √2 — Pythagoras's (√2)
- Digit 8,442 = 9
- ln 2 — Natural log of 2
- Digit 8,442 = 1
- γ — Euler-Mascheroni (γ)
- Digit 8,442 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8442, here are decompositions:
- 11 + 8431 = 8442
- 13 + 8429 = 8442
- 19 + 8423 = 8442
- 23 + 8419 = 8442
- 53 + 8389 = 8442
- 73 + 8369 = 8442
- 79 + 8363 = 8442
- 89 + 8353 = 8442
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.32.250.
- Address
- 0.0.32.250
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.32.250
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 8442 first appears in π at position 7,335 of the decimal expansion (the 7,335ordinal-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.