131,042
131,042 is a composite number, even.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 11
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 240,131
- Square (n²)
- 17,172,005,764
- Cube (n³)
- 2,250,253,979,326,088
- Divisor count
- 4
- σ(n) — sum of divisors
- 196,566
- φ(n) — Euler's totient
- 65,520
- Sum of prime factors
- 65,523
Primality
Prime factorization: 2 × 65521
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,042 = [361; (1, 360, 1, 722)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand forty-two
- Ordinal
- 131042nd
- Binary
- 11111111111100010
- Octal
- 377742
- Hexadecimal
- 0x1FFE2
- Base64
- Af/i
- One's complement
- 4,294,836,253 (32-bit)
- Scientific notation
- 1.31042 × 10⁵
- As a duration
- 131,042 s = 1 day, 12 hours, 24 minutes, 2 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαμβʹ
- Mayan (base 20)
- 𝋰·𝋧·𝋬·𝋢
- Chinese
- 一十三萬一千零四十二
- Chinese (financial)
- 壹拾參萬壹仟零肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131042, here are decompositions:
- 19 + 131023 = 131042
- 31 + 131011 = 131042
- 61 + 130981 = 131042
- 73 + 130969 = 131042
- 199 + 130843 = 131042
- 313 + 130729 = 131042
- 349 + 130693 = 131042
- 409 + 130633 = 131042
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.255.226.
- Address
- 0.1.255.226
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.255.226
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 131,042 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 131042 first appears in π at position 272,267 of the decimal expansion (the 272,267ordinal-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.