42,140
42,140 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 4,124
- Recamán's sequence
- a(151,343) = 42,140
- Square (n²)
- 1,775,779,600
- Cube (n³)
- 74,831,352,344,000
- Divisor count
- 36
- σ(n) — sum of divisors
- 105,336
- φ(n) — Euler's totient
- 14,112
- Sum of prime factors
- 66
Primality
Prime factorization: 2 2 × 5 × 7 2 × 43
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- forty-two thousand one hundred forty
- Ordinal
- 42140th
- Binary
- 1010010010011100
- Octal
- 122234
- Hexadecimal
- 0xA49C
- Base64
- pJw=
- One's complement
- 23,395 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵μβρμʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋧·𝋠
- Chinese
- 四萬二千一百四十
- Chinese (financial)
- 肆萬貳仟壹佰肆拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,140 = 3
- e — Euler's number (e)
- Digit 42,140 = 3
- φ — Golden ratio (φ)
- Digit 42,140 = 6
- √2 — Pythagoras's (√2)
- Digit 42,140 = 7
- ln 2 — Natural log of 2
- Digit 42,140 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,140 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42140, here are decompositions:
- 67 + 42073 = 42140
- 79 + 42061 = 42140
- 97 + 42043 = 42140
- 127 + 42013 = 42140
- 157 + 41983 = 42140
- 181 + 41959 = 42140
- 193 + 41947 = 42140
- 199 + 41941 = 42140
Showing the first eight; more decompositions exist.
UTF-8 encoding: EA 92 9C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.156.
- Address
- 0.0.164.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.156
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42140 first appears in π at position 144,606 of the decimal expansion (the 144,606ordinal-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.