131,842
131,842 is a composite number, even.
131,842 (one hundred thirty-one thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 65,921. Written other ways, in hexadecimal, 0x20302.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 192
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 248,131
- Recamán's sequence
- a(228,688) = 131,842
- Square (n²)
- 17,382,312,964
- Cube (n³)
- 2,291,718,905,799,688
- Divisor count
- 4
- σ(n) — sum of divisors
- 197,766
- φ(n) — Euler's totient
- 65,920
- Sum of prime factors
- 65,923
Primality
Prime factorization: 2 × 65921
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,842 = [363; (9, 1, 17, 1, 2, 1, 1, 2, 1, 2, 3, 7, 8, 1, 4, 1, 4, 1, 3, 1, 51, 12, 1, 2, …)]
Representations
- In words
- one hundred thirty-one thousand eight hundred forty-two
- Ordinal
- 131842nd
- Binary
- 100000001100000010
- Octal
- 401402
- Hexadecimal
- 0x20302
- Base64
- AgMC
- One's complement
- 4,294,835,453 (32-bit)
- Scientific notation
- 1.31842 × 10⁵
- As a duration
- 131,842 s = 1 day, 12 hours, 37 minutes, 22 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαωμβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋬·𝋢
- Chinese
- 一十三萬一千八百四十二
- Chinese (financial)
- 壹拾參萬壹仟捌佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131842, here are decompositions:
- 3 + 131839 = 131842
- 5 + 131837 = 131842
- 59 + 131783 = 131842
- 71 + 131771 = 131842
- 83 + 131759 = 131842
- 131 + 131711 = 131842
- 251 + 131591 = 131842
- 281 + 131561 = 131842
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8C 82 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.2.
- Address
- 0.2.3.2
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.2
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 131,842 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.