139,131
139,131 is a composite number, odd.
139,131 (one hundred thirty-nine thousand one hundred thirty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3³ × 5,153. Written other ways, in hexadecimal, 0x21F7B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 81
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 131,931
- Recamán's sequence
- a(490,565) = 139,131
- Square (n²)
- 19,357,435,161
- Cube (n³)
- 2,693,219,311,385,091
- Divisor count
- 8
- σ(n) — sum of divisors
- 206,160
- φ(n) — Euler's totient
- 92,736
- Sum of prime factors
- 5,162
Primality
Prime factorization: 3 3 × 5153
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,131 = [373; (373, 746)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-nine thousand one hundred thirty-one
- Ordinal
- 139131st
- Binary
- 100001111101111011
- Octal
- 417573
- Hexadecimal
- 0x21F7B
- Base64
- Ah97
- One's complement
- 4,294,828,164 (32-bit)
- Scientific notation
- 1.39131 × 10⁵
- As a duration
- 139,131 s = 1 day, 14 hours, 38 minutes, 51 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλθρλαʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋰·𝋫
- Chinese
- 一十三萬九千一百三十一
- Chinese (financial)
- 壹拾參萬玖仟壹佰參拾壹
Also seen as
UTF-8 encoding: F0 A1 BD BB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.123.
- Address
- 0.2.31.123
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.31.123
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 139,131 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 139131 first appears in π at position 710,490 of the decimal expansion (the 710,490ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.