131,942
131,942 is a composite number, even.
131,942 (one hundred thirty-one thousand nine hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 37 × 1,783. Written other ways, in hexadecimal, 0x20366.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 216
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 249,131
- Recamán's sequence
- a(228,488) = 131,942
- Square (n²)
- 17,408,691,364
- Cube (n³)
- 2,296,937,555,948,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 203,376
- φ(n) — Euler's totient
- 64,152
- Sum of prime factors
- 1,822
Primality
Prime factorization: 2 × 37 × 1783
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,942 = [363; (4, 5, 18, 1, 12, 1, 3, 6, 1, 1, 6, 1, 1, 1, 9, 1, 1, 2, 1, 1, 2, 5, 1, 1, …)]
Representations
- In words
- one hundred thirty-one thousand nine hundred forty-two
- Ordinal
- 131942nd
- Binary
- 100000001101100110
- Octal
- 401546
- Hexadecimal
- 0x20366
- Base64
- AgNm
- One's complement
- 4,294,835,353 (32-bit)
- Scientific notation
- 1.31942 × 10⁵
- As a duration
- 131,942 s = 1 day, 12 hours, 39 minutes, 2 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡμβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋱·𝋢
- Chinese
- 一十三萬一千九百四十二
- Chinese (financial)
- 壹拾參萬壹仟玖佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131942, here are decompositions:
- 3 + 131939 = 131942
- 43 + 131899 = 131942
- 103 + 131839 = 131942
- 163 + 131779 = 131942
- 193 + 131749 = 131942
- 199 + 131743 = 131942
- 211 + 131731 = 131942
- 229 + 131713 = 131942
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8D A6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.102.
- Address
- 0.2.3.102
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.102
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 131,942 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.