131,240
131,240 is a composite number, even.
Interestingness
Properties
Primality
Prime factorization: 2 3 × 5 × 17 × 193
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,240 = [362; (3, 1, 2, 3, 1, 1, 4, 4, 3, 1, 1, 3, 1, 14, 181, 14, 1, 3, 1, 1, 3, 4, 4, 1, …)]
Period length 30 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand two hundred forty
- Ordinal
- 131240th
- Binary
- 100000000010101000
- Octal
- 400250
- Hexadecimal
- 0x200A8
- Base64
- AgCo
- One's complement
- 4,294,836,055 (32-bit)
- Scientific notation
- 1.3124 × 10⁵
- As a duration
- 131,240 s = 1 day, 12 hours, 27 minutes, 20 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλασμʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋢·𝋠
- Chinese
- 一十三萬一千二百四十
- Chinese (financial)
- 壹拾參萬壹仟貳佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131240, here are decompositions:
- 19 + 131221 = 131240
- 37 + 131203 = 131240
- 97 + 131143 = 131240
- 127 + 131113 = 131240
- 139 + 131101 = 131240
- 181 + 131059 = 131240
- 199 + 131041 = 131240
- 229 + 131011 = 131240
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 82 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.168.
- Address
- 0.2.0.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.0.168
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 131,240 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 131240 first appears in π at position 594,940 of the decimal expansion (the 594,940ordinal-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.