131,864
131,864 is a composite number, even.
131,864 (one hundred thirty-one thousand eight hundred sixty-four) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 53 × 311. Written other ways, in hexadecimal, 0x20318.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 576
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 468,131
- Recamán's sequence
- a(228,644) = 131,864
- Square (n²)
- 17,388,114,496
- Cube (n³)
- 2,292,866,329,900,544
- Divisor count
- 16
- σ(n) — sum of divisors
- 252,720
- φ(n) — Euler's totient
- 64,480
- Sum of prime factors
- 370
Primality
Prime factorization: 2 3 × 53 × 311
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,864 = [363; (7, 1, 1, 1, 4, 7, 1, 17, 3, 1, 1, 2, 5, 1, 6, 1, 4, 28, 1, 5, 2, 5, 1, 28, …)]
Period length 42 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand eight hundred sixty-four
- Ordinal
- 131864th
- Binary
- 100000001100011000
- Octal
- 401430
- Hexadecimal
- 0x20318
- Base64
- AgMY
- One's complement
- 4,294,835,431 (32-bit)
- Scientific notation
- 1.31864 × 10⁵
- As a duration
- 131,864 s = 1 day, 12 hours, 37 minutes, 44 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαωξδʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋭·𝋤
- Chinese
- 一十三萬一千八百六十四
- Chinese (financial)
- 壹拾參萬壹仟捌佰陸拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131864, here are decompositions:
- 3 + 131861 = 131864
- 67 + 131797 = 131864
- 151 + 131713 = 131864
- 157 + 131707 = 131864
- 163 + 131701 = 131864
- 193 + 131671 = 131864
- 223 + 131641 = 131864
- 283 + 131581 = 131864
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8C 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.24.
- Address
- 0.2.3.24
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.24
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 131,864 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 131864 first appears in π at position 206,801 of the decimal expansion (the 206,801ordinal-suffix:st 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.