131,928
131,928 is a composite number, even.
131,928 (one hundred thirty-one thousand nine hundred twenty-eight) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 23 × 239. Its proper divisors sum to 213,672, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20358.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 432
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 829,131
- Recamán's sequence
- a(228,516) = 131,928
- Square (n²)
- 17,404,997,184
- Cube (n³)
- 2,296,206,468,490,752
- Divisor count
- 32
- σ(n) — sum of divisors
- 345,600
- φ(n) — Euler's totient
- 41,888
- Sum of prime factors
- 271
Primality
Prime factorization: 2 3 × 3 × 23 × 239
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,928 = [363; (4, 1, 1, 3, 4, 1, 3, 1, 30, 1, 3, 1, 4, 3, 1, 1, 4, 726)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand nine hundred twenty-eight
- Ordinal
- 131928th
- Binary
- 100000001101011000
- Octal
- 401530
- Hexadecimal
- 0x20358
- Base64
- AgNY
- One's complement
- 4,294,835,367 (32-bit)
- Scientific notation
- 1.31928 × 10⁵
- As a duration
- 131,928 s = 1 day, 12 hours, 38 minutes, 48 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαϡκηʹ
- Mayan (base 20)
- 𝋰·𝋩·𝋰·𝋨
- Chinese
- 一十三萬一千九百二十八
- Chinese (financial)
- 壹拾參萬壹仟玖佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131928, here are decompositions:
- 19 + 131909 = 131928
- 29 + 131899 = 131928
- 37 + 131891 = 131928
- 67 + 131861 = 131928
- 79 + 131849 = 131928
- 89 + 131839 = 131928
- 131 + 131797 = 131928
- 149 + 131779 = 131928
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 8D 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.88.
- Address
- 0.2.3.88
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.3.88
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 131,928 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.