131,142
131,142 is a composite number, even.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 12
- Digit product
- 24
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 241,131
- Square (n²)
- 17,198,224,164
- Cube (n³)
- 2,255,409,513,315,288
- Divisor count
- 16
- σ(n) — sum of divisors
- 286,272
- φ(n) — Euler's totient
- 39,720
- Sum of prime factors
- 2,003
Primality
Prime factorization: 2 × 3 × 11 × 1987
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,142 = [362; (7, 2, 1, 1, 3, 12, 4, 1, 3, 1, 1, 6, 1, 9, 1, 16, 2, 1, 33, 1, 4, 2, 3, 3, …)]
Representations
- In words
- one hundred thirty-one thousand one hundred forty-two
- Ordinal
- 131142nd
- Binary
- 100000000001000110
- Octal
- 400106
- Hexadecimal
- 0x20046
- Base64
- AgBG
- One's complement
- 4,294,836,153 (32-bit)
- Scientific notation
- 1.31142 × 10⁵
- As a duration
- 131,142 s = 1 day, 12 hours, 25 minutes, 42 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαρμβʹ
- Mayan (base 20)
- 𝋰·𝋧·𝋱·𝋢
- Chinese
- 一十三萬一千一百四十二
- Chinese (financial)
- 壹拾參萬壹仟壹佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131142, here are decompositions:
- 13 + 131129 = 131142
- 29 + 131113 = 131142
- 31 + 131111 = 131142
- 41 + 131101 = 131142
- 71 + 131071 = 131142
- 79 + 131063 = 131142
- 83 + 131059 = 131142
- 101 + 131041 = 131142
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 81 86 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.70.
- Address
- 0.2.0.70
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.0.70
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 131,142 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.