131,139
131,139 is a composite number, odd.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 81
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 931,131
- Square (n²)
- 17,197,437,321
- Cube (n³)
- 2,255,254,732,838,619
- Divisor count
- 10
- σ(n) — sum of divisors
- 196,020
- φ(n) — Euler's totient
- 87,372
- Sum of prime factors
- 1,631
Primality
Prime factorization: 3 4 × 1619
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,139 = [362; (7, 1, 1, 1, 1, 1, 5, 2, 6, 3, 4, 2, 1, 4, 3, 3, 1, 1, 361, 1, 1, 3, 3, 4, …)]
Period length 38 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand one hundred thirty-nine
- Ordinal
- 131139th
- Binary
- 100000000001000011
- Octal
- 400103
- Hexadecimal
- 0x20043
- Base64
- AgBD
- One's complement
- 4,294,836,156 (32-bit)
- Scientific notation
- 1.31139 × 10⁵
- As a duration
- 131,139 s = 1 day, 12 hours, 25 minutes, 39 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαρλθʹ
- Mayan (base 20)
- 𝋰·𝋧·𝋰·𝋳
- Chinese
- 一十三萬一千一百三十九
- Chinese (financial)
- 壹拾參萬壹仟壹佰參拾玖
Also seen as
UTF-8 encoding: F0 A0 81 83 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.67.
- Address
- 0.2.0.67
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.0.67
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 131,139 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.