109,642
109,642 is a composite number, even.
109,642 (one hundred nine thousand six hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 13 × 4,217. Written other ways, in hexadecimal, 0x1AC4A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 22
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 246,901
- Recamán's sequence
- a(250,012) = 109,642
- Square (n²)
- 12,021,368,164
- Cube (n³)
- 1,318,046,848,237,288
- Divisor count
- 8
- σ(n) — sum of divisors
- 177,156
- φ(n) — Euler's totient
- 50,592
- Sum of prime factors
- 4,232
Primality
Prime factorization: 2 × 13 × 4217
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√109,642 = [331; (8, 5, 1, 2, 1, 3, 1, 1, 2, 3, 4, 29, 1, 6, 1, 1, 1, 4, 2, 13, 15, 1, 2, 3, …)]
Representations
- In words
- one hundred nine thousand six hundred forty-two
- Ordinal
- 109642nd
- Binary
- 11010110001001010
- Octal
- 326112
- Hexadecimal
- 0x1AC4A
- Base64
- AaxK
- One's complement
- 4,294,857,653 (32-bit)
- Scientific notation
- 1.09642 × 10⁵
- As a duration
- 109,642 s = 1 day, 6 hours, 27 minutes, 22 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρθχμβʹ
- Mayan (base 20)
- 𝋭·𝋮·𝋢·𝋢
- Chinese
- 一十萬九千六百四十二
- Chinese (financial)
- 壹拾萬玖仟陸佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 109642, here are decompositions:
- 3 + 109639 = 109642
- 23 + 109619 = 109642
- 53 + 109589 = 109642
- 59 + 109583 = 109642
- 101 + 109541 = 109642
- 173 + 109469 = 109642
- 191 + 109451 = 109642
- 251 + 109391 = 109642
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.172.74.
- Address
- 0.1.172.74
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.172.74
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 109,642 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.