130,680
130,680 is a composite number, even.
130,680 (one hundred thirty thousand six hundred eighty) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2³ × 3³ × 5 × 11². Its proper divisors sum to 348,120, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1FE78.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 86,031
- Square (n²)
- 17,077,262,400
- Cube (n³)
- 2,231,656,650,432,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 478,800
- φ(n) — Euler's totient
- 31,680
- Sum of prime factors
- 42
Primality
Prime factorization: 2 3 × 3 3 × 5 × 11 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,680 = [361; (2, 79, 1, 4, 1, 79, 2, 722)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand six hundred eighty
- Ordinal
- 130680th
- Binary
- 11111111001111000
- Octal
- 377170
- Hexadecimal
- 0x1FE78
- Base64
- Af54
- One's complement
- 4,294,836,615 (32-bit)
- Scientific notation
- 1.3068 × 10⁵
- As a duration
- 130,680 s = 1 day, 12 hours, 18 minutes
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλχπʹ
- Mayan (base 20)
- 𝋰·𝋦·𝋮·𝋠
- Chinese
- 一十三萬零六百八十
- Chinese (financial)
- 壹拾參萬零陸佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130680, here are decompositions:
- 23 + 130657 = 130680
- 29 + 130651 = 130680
- 31 + 130649 = 130680
- 37 + 130643 = 130680
- 41 + 130639 = 130680
- 47 + 130633 = 130680
- 59 + 130621 = 130680
- 61 + 130619 = 130680
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.120.
- Address
- 0.1.254.120
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.254.120
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 130,680 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.