131,382
131,382 is a composite number, even.
131,382 (one hundred thirty-one thousand three hundred eighty-two) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2 × 3⁴ × 811. Its proper divisors sum to 163,374, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20136.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 144
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 283,131
- Square (n²)
- 17,261,229,924
- Cube (n³)
- 2,267,814,909,874,968
- Divisor count
- 20
- σ(n) — sum of divisors
- 294,756
- φ(n) — Euler's totient
- 43,740
- Sum of prime factors
- 825
Primality
Prime factorization: 2 × 3 4 × 811
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,382 = [362; (2, 6, 1, 37, 3, 2, 9, 1, 3, 1, 1, 3, 31, 4, 4, 1, 4, 1, 1, 1, 1, 79, 1, 15, …)]
Representations
- In words
- one hundred thirty-one thousand three hundred eighty-two
- Ordinal
- 131382nd
- Binary
- 100000000100110110
- Octal
- 400466
- Hexadecimal
- 0x20136
- Base64
- AgE2
- One's complement
- 4,294,835,913 (32-bit)
- Scientific notation
- 1.31382 × 10⁵
- As a duration
- 131,382 s = 1 day, 12 hours, 29 minutes, 42 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλατπβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋩·𝋢
- Chinese
- 一十三萬一千三百八十二
- Chinese (financial)
- 壹拾參萬壹仟參佰捌拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131382, here are decompositions:
- 11 + 131371 = 131382
- 19 + 131363 = 131382
- 61 + 131321 = 131382
- 71 + 131311 = 131382
- 79 + 131303 = 131382
- 89 + 131293 = 131382
- 131 + 131251 = 131382
- 151 + 131231 = 131382
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 84 B6 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.54.
- Address
- 0.2.1.54
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.54
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 131,382 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 131382 first appears in π at position 410,548 of the decimal expansion (the 410,548ordinal-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°.