133,831
133,831 is a prime, odd.
133,831 (one hundred thirty-three thousand eight hundred thirty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x20AC7.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 216
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 138,331
- Square (n²)
- 17,910,736,561
- Cube (n³)
- 2,397,011,784,695,191
- Divisor count
- 2
- σ(n) — sum of divisors
- 133,832
- φ(n) — Euler's totient
- 133,830
Primality
133,831 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,831 = [365; (1, 4, 1, 5, 1, 7, 3, 1, 1, 1, 1, 1, 65, 1, 8, 2, 1, 1, 7, 1, 4, 2, 1, 1, …)]
Representations
- In words
- one hundred thirty-three thousand eight hundred thirty-one
- Ordinal
- 133831st
- Binary
- 100000101011000111
- Octal
- 405307
- Hexadecimal
- 0x20AC7
- Base64
- AgrH
- One's complement
- 4,294,833,464 (32-bit)
- Scientific notation
- 1.33831 × 10⁵
- As a duration
- 133,831 s = 1 day, 13 hours, 10 minutes, 31 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋 𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλγωλαʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋫·𝋫
- Chinese
- 一十三萬三千八百三十一
- Chinese (financial)
- 壹拾參萬參仟捌佰參拾壹
Also seen as
UTF-8 encoding: F0 A0 AB 87 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.199.
- Address
- 0.2.10.199
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.199
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 133,831 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.