133,691
133,691 is a prime, odd.
133,691 (one hundred thirty-three thousand six hundred ninety-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x20A3B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 486
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 196,331
- Square (n²)
- 17,873,283,481
- Cube (n³)
- 2,389,497,141,858,371
- Divisor count
- 2
- σ(n) — sum of divisors
- 133,692
- φ(n) — Euler's totient
- 133,690
Primality
133,691 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√133,691 = [365; (1, 1, 1, 3, 5, 2, 16, 1, 1, 4, 1, 1, 8, 3, 1, 5, 10, 1, 2, 1, 6, 11, 9, 1, …)]
Representations
- In words
- one hundred thirty-three thousand six hundred ninety-one
- Ordinal
- 133691st
- Binary
- 100000101000111011
- Octal
- 405073
- Hexadecimal
- 0x20A3B
- Base64
- Ago7
- One's complement
- 4,294,833,604 (32-bit)
- Scientific notation
- 1.33691 × 10⁵
- As a duration
- 133,691 s = 1 day, 13 hours, 8 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλγχϟαʹ
- Mayan (base 20)
- 𝋰·𝋮·𝋤·𝋫
- Chinese
- 一十三萬三千六百九十一
- Chinese (financial)
- 壹拾參萬參仟陸佰玖拾壹
Also seen as
UTF-8 encoding: F0 A0 A8 BB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.59.
- Address
- 0.2.10.59
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.10.59
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 133,691 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.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.