131,976
131,976 is a composite number, even.
131,976 (one hundred thirty-one thousand nine hundred seventy-six) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 3³ × 13 × 47. Its proper divisors sum to 271,224, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20388.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 1,134
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 679,131
- Recamán's sequence
- a(228,420) = 131,976
- Square (n²)
- 17,417,664,576
- Cube (n³)
- 2,298,713,700,082,176
- Divisor count
- 64
- σ(n) — sum of divisors
- 403,200
- φ(n) — Euler's totient
- 39,744
- Sum of prime factors
- 75
Primality
Prime factorization: 2 3 × 3 3 × 13 × 47
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,976 = [363; (3, 1, 1, 28, 2, 28, 1, 1, 3, 726)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand nine hundred seventy-six
- Ordinal
- 131976th
- Binary
- 100000001110001000
- Octal
- 401610
- Hexadecimal
- 0x20388
- Base64
- AgOI
- One's complement
- 4,294,835,319 (32-bit)
- Scientific notation
- 1.31976 × 10⁵
- As a duration
- 131,976 s = 1 day, 12 hours, 39 minutes, 36 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡοϛʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋲·𝋰
- Chinese
- 一十三萬一千九百七十六
- Chinese (financial)
- 壹拾參萬壹仟玖佰柒拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131976, here are decompositions:
- 7 + 131969 = 131976
- 17 + 131959 = 131976
- 29 + 131947 = 131976
- 37 + 131939 = 131976
- 43 + 131933 = 131976
- 67 + 131909 = 131976
- 83 + 131893 = 131976
- 127 + 131849 = 131976
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8E 88 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.136.
- Address
- 0.2.3.136
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.136
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 131,976 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 131976 first appears in π at position 412,083 of the decimal expansion (the 412,083ordinal-suffix:rd 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.