42,940
42,940 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 4,924
- Recamán's sequence
- a(72,712) = 42,940
- Square (n²)
- 1,843,843,600
- Cube (n³)
- 79,174,644,184,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 95,760
- φ(n) — Euler's totient
- 16,128
- Sum of prime factors
- 141
Primality
Prime factorization: 2 2 × 5 × 19 × 113
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand nine hundred forty
- Ordinal
- 42940th
- Binary
- 1010011110111100
- Octal
- 123674
- Hexadecimal
- 0xA7BC
- Base64
- p7w=
- One's complement
- 22,595 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵μβϡμʹ
- Mayan (base 20)
- 𝋥·𝋧·𝋧·𝋠
- Chinese
- 四萬二千九百四十
- Chinese (financial)
- 肆萬貳仟玖佰肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,940 = 9
- e — Euler's number (e)
- Digit 42,940 = 7
- φ — Golden ratio (φ)
- Digit 42,940 = 4
- √2 — Pythagoras's (√2)
- Digit 42,940 = 2
- ln 2 — Natural log of 2
- Digit 42,940 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,940 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42940, here are decompositions:
- 3 + 42937 = 42940
- 11 + 42929 = 42940
- 17 + 42923 = 42940
- 41 + 42899 = 42940
- 101 + 42839 = 42940
- 167 + 42773 = 42940
- 173 + 42767 = 42940
- 197 + 42743 = 42940
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 9E BC (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.188.
- Address
- 0.0.167.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.167.188
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42940 first appears in π at position 13,486 of the decimal expansion (the 13,486ordinal-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.