131,642
131,642 is a composite number, even.
131,642 (one hundred thirty-one thousand six hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 7 × 9,403. Written other ways, in hexadecimal, 0x2023A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 144
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 246,131
- Recamán's sequence
- a(229,088) = 131,642
- Square (n²)
- 17,329,616,164
- Cube (n³)
- 2,281,305,331,061,288
- Divisor count
- 8
- σ(n) — sum of divisors
- 225,696
- φ(n) — Euler's totient
- 56,412
- Sum of prime factors
- 9,412
Primality
Prime factorization: 2 × 7 × 9403
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,642 = [362; (1, 4, 1, 2, 1, 1, 22, 1, 4, 1, 102, 1, 4, 1, 22, 1, 1, 2, 1, 4, 1, 724)]
Period length 22 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand six hundred forty-two
- Ordinal
- 131642nd
- Binary
- 100000001000111010
- Octal
- 401072
- Hexadecimal
- 0x2023A
- Base64
- AgI6
- One's complement
- 4,294,835,653 (32-bit)
- Scientific notation
- 1.31642 × 10⁵
- As a duration
- 131,642 s = 1 day, 12 hours, 34 minutes, 2 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαχμβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋢·𝋢
- Chinese
- 一十三萬一千六百四十二
- Chinese (financial)
- 壹拾參萬壹仟陸佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131642, here are decompositions:
- 3 + 131639 = 131642
- 31 + 131611 = 131642
- 61 + 131581 = 131642
- 163 + 131479 = 131642
- 193 + 131449 = 131642
- 211 + 131431 = 131642
- 229 + 131413 = 131642
- 271 + 131371 = 131642
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 88 BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.58.
- Address
- 0.2.2.58
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.58
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 131,642 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.