108,138
108,138 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 831,801
- Recamán's sequence
- a(251,156) = 108,138
- Square (n²)
- 11,693,827,044
- Cube (n³)
- 1,264,547,068,884,072
- Divisor count
- 16
- σ(n) — sum of divisors
- 220,320
- φ(n) — Euler's totient
- 35,376
- Sum of prime factors
- 341
Primality
Prime factorization: 2 × 3 × 67 × 269
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred eight thousand one hundred thirty-eight
- Ordinal
- 108138th
- Binary
- 11010011001101010
- Octal
- 323152
- Hexadecimal
- 0x1A66A
- Base64
- AaZq
- One's complement
- 4,294,859,157 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρηρληʹ
- Mayan (base 20)
- 𝋭·𝋪·𝋦·𝋲
- Chinese
- 一十萬八千一百三十八
- Chinese (financial)
- 壹拾萬捌仟壹佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 108138, here are decompositions:
- 7 + 108131 = 108138
- 11 + 108127 = 108138
- 29 + 108109 = 108138
- 31 + 108107 = 108138
- 59 + 108079 = 108138
- 97 + 108041 = 108138
- 101 + 108037 = 108138
- 127 + 108011 = 108138
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.166.106.
- Address
- 0.1.166.106
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.166.106
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 108,138 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.