131,670
131,670 is a composite number, even.
131,670 (one hundred thirty-one thousand six hundred seventy) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2 × 3² × 5 × 7 × 11 × 19. Its proper divisors sum to 317,610, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20256.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 76,131
- Recamán's sequence
- a(229,032) = 131,670
- Square (n²)
- 17,336,988,900
- Cube (n³)
- 2,282,761,328,463,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 449,280
- φ(n) — Euler's totient
- 25,920
- Sum of prime factors
- 50
Primality
Prime factorization: 2 × 3 2 × 5 × 7 × 11 × 19
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,670 = [362; (1, 6, 3, 80, 3, 6, 1, 724)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand six hundred seventy
- Ordinal
- 131670th
- Binary
- 100000001001010110
- Octal
- 401126
- Hexadecimal
- 0x20256
- Base64
- AgJW
- One's complement
- 4,294,835,625 (32-bit)
- Scientific notation
- 1.3167 × 10⁵
- As a duration
- 131,670 s = 1 day, 12 hours, 34 minutes, 30 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαχοʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋣·𝋪
- Chinese
- 一十三萬一千六百七十
- Chinese (financial)
- 壹拾參萬壹仟陸佰柒拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131670, here are decompositions:
- 29 + 131641 = 131670
- 31 + 131639 = 131670
- 43 + 131627 = 131670
- 53 + 131617 = 131670
- 59 + 131611 = 131670
- 79 + 131591 = 131670
- 89 + 131581 = 131670
- 109 + 131561 = 131670
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 89 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.86.
- Address
- 0.2.2.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.2.86
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 131,670 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.