42,068
42,068 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 86,024
- Recamán's sequence
- a(151,487) = 42,068
- Square (n²)
- 1,769,716,624
- Cube (n³)
- 74,448,438,938,432
- Divisor count
- 12
- σ(n) — sum of divisors
- 79,380
- φ(n) — Euler's totient
- 19,392
- Sum of prime factors
- 826
Primality
Prime factorization: 2 2 × 13 × 809
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand sixty-eight
- Ordinal
- 42068th
- Binary
- 1010010001010100
- Octal
- 122124
- Hexadecimal
- 0xA454
- Base64
- pFQ=
- One's complement
- 23,467 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβξηʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋣·𝋨
- Chinese
- 四萬二千零六十八
- Chinese (financial)
- 肆萬貳仟零陸拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,068 = 5
- e — Euler's number (e)
- Digit 42,068 = 5
- φ — Golden ratio (φ)
- Digit 42,068 = 5
- √2 — Pythagoras's (√2)
- Digit 42,068 = 7
- ln 2 — Natural log of 2
- Digit 42,068 = 9
- γ — Euler-Mascheroni (γ)
- Digit 42,068 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42068, here are decompositions:
- 7 + 42061 = 42068
- 109 + 41959 = 42068
- 127 + 41941 = 42068
- 157 + 41911 = 42068
- 181 + 41887 = 42068
- 307 + 41761 = 42068
- 331 + 41737 = 42068
- 349 + 41719 = 42068
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 91 94 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.84.
- Address
- 0.0.164.84
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.84
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 42068 first appears in π at position 73,628 of the decimal expansion (the 73,628ordinal-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.