131,439
131,439 is a composite number, odd.
131,439 (one hundred thirty-one thousand four hundred thirty-nine) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3 × 7 × 11 × 569. Written other ways, in hexadecimal, 0x2016F.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 324
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 934,131
- Recamán's sequence
- a(229,494) = 131,439
- Square (n²)
- 17,276,210,721
- Cube (n³)
- 2,270,767,860,957,519
- Divisor count
- 16
- σ(n) — sum of divisors
- 218,880
- φ(n) — Euler's totient
- 68,160
- Sum of prime factors
- 590
Primality
Prime factorization: 3 × 7 × 11 × 569
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,439 = [362; (1, 1, 5, 28, 1, 4, 1, 1, 1, 1, 2, 1, 3, 3, 1, 4, 1, 4, 3, 6, 20, 1, 1, 3, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred thirty-nine
- Ordinal
- 131439th
- Binary
- 100000000101101111
- Octal
- 400557
- Hexadecimal
- 0x2016F
- Base64
- AgFv
- One's complement
- 4,294,835,856 (32-bit)
- Scientific notation
- 1.31439 × 10⁵
- As a duration
- 131,439 s = 1 day, 12 hours, 30 minutes, 39 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαυλθʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋫·𝋳
- Chinese
- 一十三萬一千四百三十九
- Chinese (financial)
- 壹拾參萬壹仟肆佰參拾玖
Also seen as
UTF-8 encoding: F0 A0 85 AF (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.111.
- Address
- 0.2.1.111
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.111
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 131,439 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 131439 first appears in π at position 467,006 of the decimal expansion (the 467,006ordinal-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°.