131,912
131,912 is a composite number, even.
131,912 (one hundred thirty-one thousand nine hundred twelve) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 11 × 1,499. Its proper divisors sum to 138,088, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20348.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 54
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 219,131
- Recamán's sequence
- a(228,548) = 131,912
- Square (n²)
- 17,400,775,744
- Cube (n³)
- 2,295,371,129,942,528
- Divisor count
- 16
- σ(n) — sum of divisors
- 270,000
- φ(n) — Euler's totient
- 59,920
- Sum of prime factors
- 1,516
Primality
Prime factorization: 2 3 × 11 × 1499
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,912 = [363; (5, 12, 1, 3, 2, 1, 2, 14, 2, 4, 1, 4, 1, 1, 10, 7, 2, 1, 1, 5, 1, 5, 103, 1, …)]
Period length 54 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand nine hundred twelve
- Ordinal
- 131912th
- Binary
- 100000001101001000
- Octal
- 401510
- Hexadecimal
- 0x20348
- Base64
- AgNI
- One's complement
- 4,294,835,383 (32-bit)
- Scientific notation
- 1.31912 × 10⁵
- As a duration
- 131,912 s = 1 day, 12 hours, 38 minutes, 32 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡιβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋯·𝋬
- Chinese
- 一十三萬一千九百一十二
- Chinese (financial)
- 壹拾參萬壹仟玖佰壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131912, here are decompositions:
- 3 + 131909 = 131912
- 13 + 131899 = 131912
- 19 + 131893 = 131912
- 73 + 131839 = 131912
- 163 + 131749 = 131912
- 181 + 131731 = 131912
- 199 + 131713 = 131912
- 211 + 131701 = 131912
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8D 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.72.
- Address
- 0.2.3.72
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.72
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 131,912 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.