106,721
106,721 is a prime, odd.
106,721 (one hundred six thousand seven hundred twenty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1A0E1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 127,601
- Recamán's sequence
- a(81,417) = 106,721
- Square (n²)
- 11,389,371,841
- Cube (n³)
- 1,215,485,152,243,361
- Divisor count
- 2
- σ(n) — sum of divisors
- 106,722
- φ(n) — Euler's totient
- 106,720
Primality
106,721 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√106,721 = [326; (1, 2, 7, 130, 1, 1, 6, 2, 1, 1, 1, 25, 1, 1, 33, 1, 7, 5, 9, 1, 5, 1, 39, 1, …)]
Representations
- In words
- one hundred six thousand seven hundred twenty-one
- Ordinal
- 106721st
- Binary
- 11010000011100001
- Octal
- 320341
- Hexadecimal
- 0x1A0E1
- Base64
- AaDh
- One's complement
- 4,294,860,574 (32-bit)
- Scientific notation
- 1.06721 × 10⁵
- As a duration
- 106,721 s = 1 day, 5 hours, 38 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρϛψκαʹ
- Mayan (base 20)
- 𝋭·𝋦·𝋰·𝋡
- Chinese
- 十萬六千七百二十一
- Chinese (financial)
- 壹拾萬陸仟柒佰貳拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.160.225.
- Address
- 0.1.160.225
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.160.225
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 106,721 and was likely granted around 1870.
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.