131,680
131,680 is a composite number, even.
131,680 (one hundred thirty-one thousand six hundred eighty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 5 × 823. Its proper divisors sum to 179,792, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20260.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 86,131
- Recamán's sequence
- a(229,012) = 131,680
- Square (n²)
- 17,339,622,400
- Cube (n³)
- 2,283,281,477,632,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 311,472
- φ(n) — Euler's totient
- 52,608
- Sum of prime factors
- 838
Primality
Prime factorization: 2 5 × 5 × 823
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,680 = [362; (1, 7, 6, 2, 2, 2, 1, 1, 1, 1, 6, 1, 17, 1, 2, 1, 5, 1, 3, 1, 4, 80, 2, 3, …)]
Representations
- In words
- one hundred thirty-one thousand six hundred eighty
- Ordinal
- 131680th
- Binary
- 100000001001100000
- Octal
- 401140
- Hexadecimal
- 0x20260
- Base64
- AgJg
- One's complement
- 4,294,835,615 (32-bit)
- Scientific notation
- 1.3168 × 10⁵
- As a duration
- 131,680 s = 1 day, 12 hours, 34 minutes, 40 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαχπʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋤·𝋠
- Chinese
- 一十三萬一千六百八十
- Chinese (financial)
- 壹拾參萬壹仟陸佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131680, here are decompositions:
- 41 + 131639 = 131680
- 53 + 131627 = 131680
- 89 + 131591 = 131680
- 137 + 131543 = 131680
- 173 + 131507 = 131680
- 179 + 131501 = 131680
- 191 + 131489 = 131680
- 233 + 131447 = 131680
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 89 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.96.
- Address
- 0.2.2.96
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.96
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 131,680 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 131680 first appears in π at position 89,782 of the decimal expansion (the 89,782ordinal-suffix:nd 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.