131,968
131,968 is a composite number, even.
131,968 (one hundred thirty-one thousand nine hundred sixty-eight) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2⁷ × 1,031. Written other ways, in hexadecimal, 0x20380.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 28
- Digit product
- 1,296
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 869,131
- Recamán's sequence
- a(228,436) = 131,968
- Square (n²)
- 17,415,553,024
- Cube (n³)
- 2,298,295,701,471,232
- Divisor count
- 16
- σ(n) — sum of divisors
- 263,160
- φ(n) — Euler's totient
- 65,920
- Sum of prime factors
- 1,045
Primality
Prime factorization: 2 7 × 1031
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,968 = [363; (3, 1, 1, 1, 5, 1, 5, 1, 2, 3, 2, 3, 3, 1, 2, 8, 1, 1, 1, 1, 4, 4, 1, 4, …)]
Representations
- In words
- one hundred thirty-one thousand nine hundred sixty-eight
- Ordinal
- 131968th
- Binary
- 100000001110000000
- Octal
- 401600
- Hexadecimal
- 0x20380
- Base64
- AgOA
- One's complement
- 4,294,835,327 (32-bit)
- Scientific notation
- 1.31968 × 10⁵
- As a duration
- 131,968 s = 1 day, 12 hours, 39 minutes, 28 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡξηʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋲·𝋨
- Chinese
- 一十三萬一千九百六十八
- Chinese (financial)
- 壹拾參萬壹仟玖佰陸拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131968, here are decompositions:
- 29 + 131939 = 131968
- 41 + 131927 = 131968
- 59 + 131909 = 131968
- 107 + 131861 = 131968
- 131 + 131837 = 131968
- 191 + 131777 = 131968
- 197 + 131771 = 131968
- 257 + 131711 = 131968
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8E 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.128.
- Address
- 0.2.3.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.128
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 131,968 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 131968 first appears in π at position 641,200 of the decimal expansion (the 641,200ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.