138,112
138,112 is a composite number, even.
138,112 (one hundred thirty-eight thousand one hundred twelve) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 13 × 83. Its proper divisors sum to 161,768, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21B80.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 48
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 211,831
- Recamán's sequence
- a(492,603) = 138,112
- Square (n²)
- 19,074,924,544
- Cube (n³)
- 2,634,475,978,620,928
- Divisor count
- 32
- σ(n) — sum of divisors
- 299,880
- φ(n) — Euler's totient
- 62,976
- Sum of prime factors
- 110
Primality
Prime factorization: 2 7 × 13 × 83
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,112 = [371; (1, 1, 1, 2, 1, 3, 6, 1, 18, 5, 9, 4, 1, 2, 1, 81, 1, 5, 1, 1, 2, 3, 2, 10, …)]
Representations
- In words
- one hundred thirty-eight thousand one hundred twelve
- Ordinal
- 138112th
- Binary
- 100001101110000000
- Octal
- 415600
- Hexadecimal
- 0x21B80
- Base64
- AhuA
- One's complement
- 4,294,829,183 (32-bit)
- Scientific notation
- 1.38112 × 10⁵
- As a duration
- 138,112 s = 1 day, 14 hours, 21 minutes, 52 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρληριβʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋥·𝋬
- Chinese
- 一十三萬八千一百一十二
- Chinese (financial)
- 壹拾參萬捌仟壹佰壹拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138112, here are decompositions:
- 5 + 138107 = 138112
- 11 + 138101 = 138112
- 41 + 138071 = 138112
- 53 + 138059 = 138112
- 59 + 138053 = 138112
- 71 + 138041 = 138112
- 113 + 137999 = 138112
- 179 + 137933 = 138112
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AE 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.128.
- Address
- 0.2.27.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.128
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 138,112 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.