131,684
131,684 is a composite number, even.
131,684 (one hundred thirty-one thousand six hundred eighty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 4,703. Its proper divisors sum to 131,740, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20264.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 576
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 486,131
- Recamán's sequence
- a(229,004) = 131,684
- Square (n²)
- 17,340,675,856
- Cube (n³)
- 2,283,489,559,421,504
- Divisor count
- 12
- σ(n) — sum of divisors
- 263,424
- φ(n) — Euler's totient
- 56,424
- Sum of prime factors
- 4,714
Primality
Prime factorization: 2 2 × 7 × 4703
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,684 = [362; (1, 7, 1, 1, 5, 1, 3, 1, 1, 2, 1, 2, 6, 1, 2, 9, 13, 11, 3, 1, 3, 1, 3, 1, …)]
Representations
- In words
- one hundred thirty-one thousand six hundred eighty-four
- Ordinal
- 131684th
- Binary
- 100000001001100100
- Octal
- 401144
- Hexadecimal
- 0x20264
- Base64
- AgJk
- One's complement
- 4,294,835,611 (32-bit)
- Scientific notation
- 1.31684 × 10⁵
- As a duration
- 131,684 s = 1 day, 12 hours, 34 minutes, 44 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαχπδʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋤·𝋤
- Chinese
- 一十三萬一千六百八十四
- Chinese (financial)
- 壹拾參萬壹仟陸佰捌拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131684, here are decompositions:
- 13 + 131671 = 131684
- 43 + 131641 = 131684
- 67 + 131617 = 131684
- 73 + 131611 = 131684
- 103 + 131581 = 131684
- 271 + 131413 = 131684
- 313 + 131371 = 131684
- 367 + 131317 = 131684
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 89 A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.100.
- Address
- 0.2.2.100
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.100
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 131,684 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.