131,488
131,488 is a composite number, even.
131,488 (one hundred thirty-one thousand four hundred eighty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 7 × 587. Its proper divisors sum to 164,864, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x201A0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 25
- Digit product
- 768
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 884,131
- Recamán's sequence
- a(229,396) = 131,488
- Square (n²)
- 17,289,094,144
- Cube (n³)
- 2,273,308,410,806,272
- Divisor count
- 24
- σ(n) — sum of divisors
- 296,352
- φ(n) — Euler's totient
- 56,256
- Sum of prime factors
- 604
Primality
Prime factorization: 2 5 × 7 × 587
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,488 = [362; (1, 1, 1, 1, 2, 1, 1, 5, 1, 5, 6, 1, 6, 1, 2, 3, 1, 2, 1, 79, 1, 5, 2, 19, …)]
Representations
- In words
- one hundred thirty-one thousand four hundred eighty-eight
- Ordinal
- 131488th
- Binary
- 100000000110100000
- Octal
- 400640
- Hexadecimal
- 0x201A0
- Base64
- AgGg
- One's complement
- 4,294,835,807 (32-bit)
- Scientific notation
- 1.31488 × 10⁵
- As a duration
- 131,488 s = 1 day, 12 hours, 31 minutes, 28 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαυπηʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋮·𝋨
- Chinese
- 一十三萬一千四百八十八
- Chinese (financial)
- 壹拾參萬壹仟肆佰捌拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131488, here are decompositions:
- 11 + 131477 = 131488
- 41 + 131447 = 131488
- 47 + 131441 = 131488
- 107 + 131381 = 131488
- 131 + 131357 = 131488
- 167 + 131321 = 131488
- 191 + 131297 = 131488
- 239 + 131249 = 131488
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 A0 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.160.
- Address
- 0.2.1.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.160
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 131,488 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.