131,750
131,750 is a composite number, even.
131,750 (one hundred thirty-one thousand seven hundred fifty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 5³ × 17 × 31. Its proper divisors sum to 137,818, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x202A6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 57,131
- Recamán's sequence
- a(228,872) = 131,750
- Square (n²)
- 17,358,062,500
- Cube (n³)
- 2,286,924,734,375,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 269,568
- φ(n) — Euler's totient
- 48,000
- Sum of prime factors
- 65
Primality
Prime factorization: 2 × 5 3 × 17 × 31
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,750 = [362; (1, 37, 4, 1, 3, 1, 1, 2, 1, 28, 3, 7, 2, 1, 1, 5, 2, 2, 8, 28, 1, 11, 2, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand seven hundred fifty
- Ordinal
- 131750th
- Binary
- 100000001010100110
- Octal
- 401246
- Hexadecimal
- 0x202A6
- Base64
- AgKm
- One's complement
- 4,294,835,545 (32-bit)
- Scientific notation
- 1.3175 × 10⁵
- As a duration
- 131,750 s = 1 day, 12 hours, 35 minutes, 50 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαψνʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋧·𝋪
- Chinese
- 一十三萬一千七百五十
- Chinese (financial)
- 壹拾參萬壹仟柒佰伍拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131750, here are decompositions:
- 7 + 131743 = 131750
- 19 + 131731 = 131750
- 37 + 131713 = 131750
- 43 + 131707 = 131750
- 79 + 131671 = 131750
- 109 + 131641 = 131750
- 139 + 131611 = 131750
- 271 + 131479 = 131750
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8A A6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.166.
- Address
- 0.2.2.166
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.166
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 131,750 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.