42,518
42,518 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 20
- Digit product
- 320
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 81,524
- Square (n²)
- 1,807,780,324
- Cube (n³)
- 76,863,203,815,832
- Divisor count
- 8
- σ(n) — sum of divisors
- 72,912
- φ(n) — Euler's totient
- 18,216
- Sum of prime factors
- 3,046
Primality
Prime factorization: 2 × 7 × 3037
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand five hundred eighteen
- Ordinal
- 42518th
- Binary
- 1010011000010110
- Octal
- 123026
- Hexadecimal
- 0xA616
- Base64
- phY=
- One's complement
- 23,017 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβφιηʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋥·𝋲
- Chinese
- 四萬二千五百一十八
- Chinese (financial)
- 肆萬貳仟伍佰壹拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,518 = 6
- e — Euler's number (e)
- Digit 42,518 = 5
- φ — Golden ratio (φ)
- Digit 42,518 = 7
- √2 — Pythagoras's (√2)
- Digit 42,518 = 9
- ln 2 — Natural log of 2
- Digit 42,518 = 7
- γ — Euler-Mascheroni (γ)
- Digit 42,518 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42518, here are decompositions:
- 19 + 42499 = 42518
- 31 + 42487 = 42518
- 61 + 42457 = 42518
- 67 + 42451 = 42518
- 109 + 42409 = 42518
- 127 + 42391 = 42518
- 139 + 42379 = 42518
- 181 + 42337 = 42518
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 98 96 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.22.
- Address
- 0.0.166.22
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.166.22
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 42518 first appears in π at position 30,740 of the decimal expansion (the 30,740ordinal-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.