42,042
42,042 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 24,024
- Recamán's sequence
- a(151,539) = 42,042
- Square (n²)
- 1,767,529,764
- Cube (n³)
- 74,310,486,338,088
- Divisor count
- 48
- σ(n) — sum of divisors
- 114,912
- φ(n) — Euler's totient
- 10,080
- Sum of prime factors
- 43
Primality
Prime factorization: 2 × 3 × 7 2 × 11 × 13
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand forty-two
- Ordinal
- 42042nd
- Binary
- 1010010000111010
- Octal
- 122072
- Hexadecimal
- 0xA43A
- Base64
- pDo=
- One's complement
- 23,493 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵μβμβʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋢·𝋢
- Chinese
- 四萬二千零四十二
- Chinese (financial)
- 肆萬貳仟零肆拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,042 = 4
- e — Euler's number (e)
- Digit 42,042 = 6
- φ — Golden ratio (φ)
- Digit 42,042 = 9
- √2 — Pythagoras's (√2)
- Digit 42,042 = 7
- ln 2 — Natural log of 2
- Digit 42,042 = 7
- γ — Euler-Mascheroni (γ)
- Digit 42,042 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42042, here are decompositions:
- 19 + 42023 = 42042
- 23 + 42019 = 42042
- 29 + 42013 = 42042
- 43 + 41999 = 42042
- 59 + 41983 = 42042
- 61 + 41981 = 42042
- 73 + 41969 = 42042
- 83 + 41959 = 42042
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 90 BA (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.58.
- Address
- 0.0.164.58
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.58
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 42042 first appears in π at position 5,953 of the decimal expansion (the 5,953ordinal-suffix:rd 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.