131,480
131,480 is a composite number, even.
131,480 (one hundred thirty-one thousand four hundred eighty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 19 × 173. Its proper divisors sum to 181,720, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x20198.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 84,131
- Recamán's sequence
- a(229,412) = 131,480
- Square (n²)
- 17,286,990,400
- Cube (n³)
- 2,272,893,497,792,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 313,200
- φ(n) — Euler's totient
- 49,536
- Sum of prime factors
- 203
Primality
Prime factorization: 2 3 × 5 × 19 × 173
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,480 = [362; (1, 1, 1, 1, 22, 1, 3, 1, 5, 2, 4, 1, 6, 1, 4, 2, 5, 1, 3, 1, 22, 1, 1, 1, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand four hundred eighty
- Ordinal
- 131480th
- Binary
- 100000000110011000
- Octal
- 400630
- Hexadecimal
- 0x20198
- Base64
- AgGY
- One's complement
- 4,294,835,815 (32-bit)
- Scientific notation
- 1.3148 × 10⁵
- As a duration
- 131,480 s = 1 day, 12 hours, 31 minutes, 20 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵ρλαυπʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋮·𝋠
- Chinese
- 一十三萬一千四百八十
- Chinese (financial)
- 壹拾參萬壹仟肆佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 131480, here are decompositions:
- 3 + 131477 = 131480
- 31 + 131449 = 131480
- 43 + 131437 = 131480
- 67 + 131413 = 131480
- 109 + 131371 = 131480
- 163 + 131317 = 131480
- 229 + 131251 = 131480
- 277 + 131203 = 131480
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A0 86 98 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.152.
- Address
- 0.2.1.152
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.152
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 131,480 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.