109,680
109,680 is a composite number, even.
109,680 (one hundred nine thousand six hundred eighty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 3 × 5 × 457. Its proper divisors sum to 231,072, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1AC70.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 86,901
- Flips to (rotate 180°)
- 89,601
- Recamán's sequence
- a(249,936) = 109,680
- Square (n²)
- 12,029,702,400
- Cube (n³)
- 1,319,417,759,232,000
- Divisor count
- 40
- σ(n) — sum of divisors
- 340,752
- φ(n) — Euler's totient
- 29,184
- Sum of prime factors
- 473
Primality
Prime factorization: 2 4 × 3 × 5 × 457
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√109,680 = [331; (5, 1, 1, 3, 2, 1, 2, 13, 6, 1, 4, 1, 2, 2, 2, 1, 1, 7, 3, 2, 1, 40, 1, 2, …)]
Period length 44 — the block in parentheses repeats forever.
Representations
- In words
- one hundred nine thousand six hundred eighty
- Ordinal
- 109680th
- Binary
- 11010110001110000
- Octal
- 326160
- Hexadecimal
- 0x1AC70
- Base64
- Aaxw
- One's complement
- 4,294,857,615 (32-bit)
- Scientific notation
- 1.0968 × 10⁵
- As a duration
- 109,680 s = 1 day, 6 hours, 28 minutes
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρθχπʹ
- Mayan (base 20)
- 𝋭·𝋮·𝋤·𝋠
- Chinese
- 一十萬九千六百八十
- Chinese (financial)
- 壹拾萬玖仟陸佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 109680, here are decompositions:
- 7 + 109673 = 109680
- 17 + 109663 = 109680
- 19 + 109661 = 109680
- 41 + 109639 = 109680
- 59 + 109621 = 109680
- 61 + 109619 = 109680
- 71 + 109609 = 109680
- 83 + 109597 = 109680
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.172.112.
- Address
- 0.1.172.112
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.172.112
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 109,680 and was likely granted around 1871.
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°.