131,432
131,432 is a composite number, even.
131,432 (one hundred thirty-one thousand four hundred thirty-two) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 7 × 2,347. Its proper divisors sum to 150,328, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20168.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 72
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 234,131
- Recamán's sequence
- a(229,508) = 131,432
- Square (n²)
- 17,274,370,624
- Cube (n³)
- 2,270,405,079,853,568
- Divisor count
- 16
- σ(n) — sum of divisors
- 281,760
- φ(n) — Euler's totient
- 56,304
- Sum of prime factors
- 2,360
Primality
Prime factorization: 2 3 × 7 × 2347
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,432 = [362; (1, 1, 6, 1, 1, 5, 1, 7, 2, 1, 1, 4, 1, 2, 3, 3, 2, 5, 1, 1, 3, 1, 3, 1, …)]
Period length 50 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred thirty-two
- Ordinal
- 131432nd
- Binary
- 100000000101101000
- Octal
- 400550
- Hexadecimal
- 0x20168
- Base64
- AgFo
- One's complement
- 4,294,835,863 (32-bit)
- Scientific notation
- 1.31432 × 10⁵
- As a duration
- 131,432 s = 1 day, 12 hours, 30 minutes, 32 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαυλβʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋫·𝋬
- Chinese
- 一十三萬一千四百三十二
- Chinese (financial)
- 壹拾參萬壹仟肆佰參拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131432, here are decompositions:
- 19 + 131413 = 131432
- 61 + 131371 = 131432
- 139 + 131293 = 131432
- 181 + 131251 = 131432
- 211 + 131221 = 131432
- 229 + 131203 = 131432
- 283 + 131149 = 131432
- 331 + 131101 = 131432
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 85 A8 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.104.
- Address
- 0.2.1.104
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.104
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 131,432 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 131432 first appears in π at position 764,835 of the decimal expansion (the 764,835ordinal-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.