42,712
42,712 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 112
- Digital root
- 7
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 21,724
- Recamán's sequence
- a(73,168) = 42,712
- Square (n²)
- 1,824,314,944
- Cube (n³)
- 77,920,139,888,128
- Divisor count
- 16
- σ(n) — sum of divisors
- 84,600
- φ(n) — Euler's totient
- 20,160
- Sum of prime factors
- 306
Primality
Prime factorization: 2 3 × 19 × 281
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand seven hundred twelve
- Ordinal
- 42712th
- Binary
- 1010011011011000
- Octal
- 123330
- Hexadecimal
- 0xA6D8
- Base64
- ptg=
- One's complement
- 22,823 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβψιβʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋯·𝋬
- Chinese
- 四萬二千七百一十二
- Chinese (financial)
- 肆萬貳仟柒佰壹拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,712 = 9
- e — Euler's number (e)
- Digit 42,712 = 6
- φ — Golden ratio (φ)
- Digit 42,712 = 1
- √2 — Pythagoras's (√2)
- Digit 42,712 = 1
- ln 2 — Natural log of 2
- Digit 42,712 = 0
- γ — Euler-Mascheroni (γ)
- Digit 42,712 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42712, here are decompositions:
- 3 + 42709 = 42712
- 11 + 42701 = 42712
- 23 + 42689 = 42712
- 29 + 42683 = 42712
- 71 + 42641 = 42712
- 101 + 42611 = 42712
- 179 + 42533 = 42712
- 239 + 42473 = 42712
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9B 98 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.216.
- Address
- 0.0.166.216
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.166.216
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 42712 first appears in π at position 324,688 of the decimal expansion (the 324,688ordinal-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.