42,864
42,864 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 24
- Digit product
- 1,536
- Digital root
- 6
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 46,824
- Recamán's sequence
- a(72,864) = 42,864
- Square (n²)
- 1,837,322,496
- Cube (n³)
- 78,754,991,468,544
- Divisor count
- 40
- σ(n) — sum of divisors
- 119,040
- φ(n) — Euler's totient
- 13,248
- Sum of prime factors
- 77
Primality
Prime factorization: 2 4 × 3 × 19 × 47
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand eight hundred sixty-four
- Ordinal
- 42864th
- Binary
- 1010011101110000
- Octal
- 123560
- Hexadecimal
- 0xA770
- Base64
- p3A=
- One's complement
- 22,671 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβωξδʹ
- Mayan (base 20)
- 𝋥·𝋧·𝋣·𝋤
- Chinese
- 四萬二千八百六十四
- Chinese (financial)
- 肆萬貳仟捌佰陸拾肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,864 = 1
- e — Euler's number (e)
- Digit 42,864 = 7
- φ — Golden ratio (φ)
- Digit 42,864 = 0
- √2 — Pythagoras's (√2)
- Digit 42,864 = 2
- ln 2 — Natural log of 2
- Digit 42,864 = 4
- γ — Euler-Mascheroni (γ)
- Digit 42,864 = 6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42864, here are decompositions:
- 5 + 42859 = 42864
- 11 + 42853 = 42864
- 23 + 42841 = 42864
- 43 + 42821 = 42864
- 67 + 42797 = 42864
- 71 + 42793 = 42864
- 97 + 42767 = 42864
- 113 + 42751 = 42864
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9D B0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.112.
- Address
- 0.0.167.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.167.112
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 42864 first appears in π at position 157,161 of the decimal expansion (the 157,161ordinal-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.