131,972
131,972 is a composite number, even.
131,972 (one hundred thirty-one thousand nine hundred seventy-two) is an even 6-digit number. It is a composite number with 6 divisors, and factors as 2² × 32,993. Written other ways, in hexadecimal, 0x20384.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 378
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 279,131
- Recamán's sequence
- a(228,428) = 131,972
- Square (n²)
- 17,416,608,784
- Cube (n³)
- 2,298,504,694,442,048
- Divisor count
- 6
- σ(n) — sum of divisors
- 230,958
- φ(n) — Euler's totient
- 65,984
- Sum of prime factors
- 32,997
Primality
Prime factorization: 2 2 × 32993
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,972 = [363; (3, 1, 1, 2, 1, 2, 1, 1, 10, 9, 2, 1, 13, 3, 2, 2, 11, 1, 9, 3, 5, 2, 1, 4, …)]
Representations
- In words
- one hundred thirty-one thousand nine hundred seventy-two
- Ordinal
- 131972nd
- Binary
- 100000001110000100
- Octal
- 401604
- Hexadecimal
- 0x20384
- Base64
- AgOE
- One's complement
- 4,294,835,323 (32-bit)
- Scientific notation
- 1.31972 × 10⁵
- As a duration
- 131,972 s = 1 day, 12 hours, 39 minutes, 32 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡοβʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋲·𝋬
- Chinese
- 一十三萬一千九百七十二
- Chinese (financial)
- 壹拾參萬壹仟玖佰柒拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131972, here are decompositions:
- 3 + 131969 = 131972
- 13 + 131959 = 131972
- 31 + 131941 = 131972
- 73 + 131899 = 131972
- 79 + 131893 = 131972
- 193 + 131779 = 131972
- 223 + 131749 = 131972
- 229 + 131743 = 131972
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8E 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.132.
- Address
- 0.2.3.132
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.132
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 131,972 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 131972 first appears in π at position 977,487 of the decimal expansion (the 977,487ordinal-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.