131,525
131,525 is a composite number, odd.
131,525 (one hundred thirty-one thousand five hundred twenty-five) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 5² × 5,261. Written other ways, in hexadecimal, 0x201C5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 150
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 525,131
- Recamán's sequence
- a(229,322) = 131,525
- Square (n²)
- 17,298,825,625
- Cube (n³)
- 2,275,228,040,328,125
- Divisor count
- 6
- σ(n) — sum of divisors
- 163,122
- φ(n) — Euler's totient
- 105,200
- Sum of prime factors
- 5,271
Primality
Prime factorization: 5 2 × 5261
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√131,525 = [362; (1, 1, 1, 37, 1, 1, 28, 1, 1, 37, 1, 1, 1, 724)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-one thousand five hundred twenty-five
- Ordinal
- 131525th
- Binary
- 100000000111000101
- Octal
- 400705
- Hexadecimal
- 0x201C5
- Base64
- AgHF
- One's complement
- 4,294,835,770 (32-bit)
- Scientific notation
- 1.31525 × 10⁵
- As a duration
- 131,525 s = 1 day, 12 hours, 32 minutes, 5 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλαφκεʹ
- Mayan (base 20)
- 𝋰·𝋨·𝋰·𝋥
- Chinese
- 一十三萬一千五百二十五
- Chinese (financial)
- 壹拾參萬壹仟伍佰貳拾伍
Also seen as
UTF-8 encoding: F0 A0 87 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.1.197.
- Address
- 0.2.1.197
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.1.197
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 131,525 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.