130,261
130,261 is a prime, odd.
130,261 (one hundred thirty thousand two hundred sixty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1FCD5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 162,031
- Square (n²)
- 16,967,928,121
- Cube (n³)
- 2,210,259,284,969,581
- Divisor count
- 2
- σ(n) — sum of divisors
- 130,262
- φ(n) — Euler's totient
- 130,260
Primality
130,261 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√130,261 = [360; (1, 11, 31, 3, 3, 13, 3, 7, 1, 1, 11, 2, 179, 1, 47, 7, 1, 4, 1, 2, 1, 1, 2, 1, …)]
Period length 43 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty thousand two hundred sixty-one
- Ordinal
- 130261st
- Binary
- 11111110011010101
- Octal
- 376325
- Hexadecimal
- 0x1FCD5
- Base64
- AfzV
- One's complement
- 4,294,837,034 (32-bit)
- Scientific notation
- 1.30261 × 10⁵
- As a duration
- 130,261 s = 1 day, 12 hours, 11 minutes, 1 second
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλσξαʹ
- Mayan (base 20)
- 𝋰·𝋥·𝋭·𝋡
- Chinese
- 一十三萬零二百六十一
- Chinese (financial)
- 壹拾參萬零貳佰陸拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.252.213.
- Address
- 0.1.252.213
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.252.213
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 130,261 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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.