100,138
100,138 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 831,001
- Square (n²)
- 10,027,619,044
- Cube (n³)
- 1,004,145,715,828,072
- Divisor count
- 4
- σ(n) — sum of divisors
- 150,210
- φ(n) — Euler's totient
- 50,068
- Sum of prime factors
- 50,071
Primality
Prime factorization: 2 × 50069
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred thousand one hundred thirty-eight
- Ordinal
- 100138th
- Binary
- 11000011100101010
- Octal
- 303452
- Hexadecimal
- 0x1872A
- Base64
- AYcq
- One's complement
- 4,294,867,157 (32-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρρληʹ
- Mayan (base 20)
- 𝋬·𝋪·𝋦·𝋲
- Chinese
- 一十萬零一百三十八
- Chinese (financial)
- 壹拾萬零壹佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100138, here are decompositions:
- 29 + 100109 = 100138
- 89 + 100049 = 100138
- 149 + 99989 = 100138
- 167 + 99971 = 100138
- 257 + 99881 = 100138
- 419 + 99719 = 100138
- 431 + 99707 = 100138
- 449 + 99689 = 100138
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 9C AA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.135.42.
- Address
- 0.1.135.42
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.135.42
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 100,138 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.