131,492
131,492 is a composite number, even.
131,492 (one hundred thirty-one thousand four hundred ninety-two) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 71 × 463. Written other ways, in hexadecimal, 0x201A4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 216
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 294,131
- Recamán's sequence
- a(229,388) = 131,492
- Square (n²)
- 17,290,146,064
- Cube (n³)
- 2,273,515,886,247,488
- Divisor count
- 12
- σ(n) — sum of divisors
- 233,856
- φ(n) — Euler's totient
- 64,680
- Sum of prime factors
- 538
Primality
Prime factorization: 2 2 × 71 × 463
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,492 = [362; (1, 1, 1, 1, 1, 1, 1, 2, 4, 24, 1, 3, 1, 1, 5, 6, 2, 8, 1, 21, 1, 3, 2, 1, …)]
Representations
- In words
- one hundred thirty-one thousand four hundred ninety-two
- Ordinal
- 131492nd
- Binary
- 100000000110100100
- Octal
- 400644
- Hexadecimal
- 0x201A4
- Base64
- AgGk
- One's complement
- 4,294,835,803 (32-bit)
- Scientific notation
- 1.31492 × 10⁵
- As a duration
- 131,492 s = 1 day, 12 hours, 31 minutes, 32 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαυϟβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋮·𝋬
- Chinese
- 一十三萬一千四百九十二
- Chinese (financial)
- 壹拾參萬壹仟肆佰玖拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131492, here are decompositions:
- 3 + 131489 = 131492
- 13 + 131479 = 131492
- 43 + 131449 = 131492
- 61 + 131431 = 131492
- 79 + 131413 = 131492
- 181 + 131311 = 131492
- 199 + 131293 = 131492
- 241 + 131251 = 131492
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 A4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.164.
- Address
- 0.2.1.164
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.164
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 131,492 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 131492 first appears in π at position 110,980 of the decimal expansion (the 110,980ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.