131,742
131,742 is a composite number, even.
131,742 (one hundred thirty-one thousand seven hundred forty-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 13 × 563. Its proper divisors sum to 176,202, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2029E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 168
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 247,131
- Recamán's sequence
- a(228,888) = 131,742
- Square (n²)
- 17,355,954,564
- Cube (n³)
- 2,286,508,166,170,488
- Divisor count
- 24
- σ(n) — sum of divisors
- 307,944
- φ(n) — Euler's totient
- 40,464
- Sum of prime factors
- 584
Primality
Prime factorization: 2 × 3 2 × 13 × 563
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,742 = [362; (1, 25, 1, 7, 1, 8, 13, 1, 1, 2, 2, 7, 1, 1, 3, 1, 1, 1, 51, 4, 1, 2, 1, 1, …)]
Representations
- In words
- one hundred thirty-one thousand seven hundred forty-two
- Ordinal
- 131742nd
- Binary
- 100000001010011110
- Octal
- 401236
- Hexadecimal
- 0x2029E
- Base64
- AgKe
- One's complement
- 4,294,835,553 (32-bit)
- Scientific notation
- 1.31742 × 10⁵
- As a duration
- 131,742 s = 1 day, 12 hours, 35 minutes, 42 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαψμβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋧·𝋢
- Chinese
- 一十三萬一千七百四十二
- Chinese (financial)
- 壹拾參萬壹仟柒佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131742, here are decompositions:
- 11 + 131731 = 131742
- 29 + 131713 = 131742
- 31 + 131711 = 131742
- 41 + 131701 = 131742
- 71 + 131671 = 131742
- 101 + 131641 = 131742
- 103 + 131639 = 131742
- 131 + 131611 = 131742
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8A 9E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.158.
- Address
- 0.2.2.158
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.158
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 131,742 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 131742 first appears in π at position 30,615 of the decimal expansion (the 30,615ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.