131,542
131,542 is a composite number, even.
131,542 (one hundred thirty-one thousand five hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 89 × 739. Written other ways, in hexadecimal, 0x201D6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 120
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 245,131
- Recamán's sequence
- a(229,288) = 131,542
- Square (n²)
- 17,303,297,764
- Cube (n³)
- 2,276,110,394,472,088
- Divisor count
- 8
- σ(n) — sum of divisors
- 199,800
- φ(n) — Euler's totient
- 64,944
- Sum of prime factors
- 830
Primality
Prime factorization: 2 × 89 × 739
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,542 = [362; (1, 2, 5, 12, 1, 1, 6, 65, 1, 3, 1, 3, 9, 1, 20, 2, 3, 5, 1, 2, 2, 2, 1, 9, …)]
Representations
- In words
- one hundred thirty-one thousand five hundred forty-two
- Ordinal
- 131542nd
- Binary
- 100000000111010110
- Octal
- 400726
- Hexadecimal
- 0x201D6
- Base64
- AgHW
- One's complement
- 4,294,835,753 (32-bit)
- Scientific notation
- 1.31542 × 10⁵
- As a duration
- 131,542 s = 1 day, 12 hours, 32 minutes, 22 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαφμβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋱·𝋢
- Chinese
- 一十三萬一千五百四十二
- Chinese (financial)
- 壹拾參萬壹仟伍佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131542, here are decompositions:
- 23 + 131519 = 131542
- 41 + 131501 = 131542
- 53 + 131489 = 131542
- 101 + 131441 = 131542
- 179 + 131363 = 131542
- 239 + 131303 = 131542
- 293 + 131249 = 131542
- 311 + 131231 = 131542
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 87 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.214.
- Address
- 0.2.1.214
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.214
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 131,542 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.