42,408
42,408 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 80,424
- Recamán's sequence
- a(150,807) = 42,408
- Square (n²)
- 1,798,438,464
- Cube (n³)
- 76,268,178,381,312
- Divisor count
- 48
- σ(n) — sum of divisors
- 124,800
- φ(n) — Euler's totient
- 12,960
- Sum of prime factors
- 62
Primality
Prime factorization: 2 3 × 3 2 × 19 × 31
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand four hundred eight
- Ordinal
- 42408th
- Binary
- 1010010110101000
- Octal
- 122650
- Hexadecimal
- 0xA5A8
- Base64
- pag=
- One's complement
- 23,127 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβυηʹ
- Mayan (base 20)
- 𝋥·𝋦·𝋠·𝋨
- Chinese
- 四萬二千四百零八
- Chinese (financial)
- 肆萬貳仟肆佰零捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,408 = 1
- e — Euler's number (e)
- Digit 42,408 = 5
- φ — Golden ratio (φ)
- Digit 42,408 = 1
- √2 — Pythagoras's (√2)
- Digit 42,408 = 3
- ln 2 — Natural log of 2
- Digit 42,408 = 8
- γ — Euler-Mascheroni (γ)
- Digit 42,408 = 6
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42408, here are decompositions:
- 5 + 42403 = 42408
- 11 + 42397 = 42408
- 17 + 42391 = 42408
- 29 + 42379 = 42408
- 59 + 42349 = 42408
- 71 + 42337 = 42408
- 101 + 42307 = 42408
- 109 + 42299 = 42408
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 96 A8 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.168.
- Address
- 0.0.165.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.165.168
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 42408 first appears in π at position 160,451 of the decimal expansion (the 160,451ordinal-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.