122,891
122,891 is a prime, odd.
122,891 (one hundred twenty-two thousand eight 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, 0x1E00B.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 288
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 198,221
- Square (n²)
- 15,102,197,881
- Cube (n³)
- 1,855,924,199,793,971
- Divisor count
- 2
- σ(n) — sum of divisors
- 122,892
- φ(n) — Euler's totient
- 122,890
Primality
122,891 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√122,891 = [350; (1, 1, 3, 1, 4, 41, 30, 2, 5, 1, 1, 1, 1, 7, 1, 1, 1, 3, 1, 4, 3, 139, 1, 10, …)]
Representations
- In words
- one hundred twenty-two thousand eight hundred ninety-one
- Ordinal
- 122891st
- Binary
- 11110000000001011
- Octal
- 360013
- Hexadecimal
- 0x1E00B
- Base64
- AeAL
- One's complement
- 4,294,844,404 (32-bit)
- Scientific notation
- 1.22891 × 10⁵
- As a duration
- 122,891 s = 1 day, 10 hours, 8 minutes, 11 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρκβωϟαʹ
- Mayan (base 20)
- 𝋯·𝋧·𝋤·𝋫
- Chinese
- 一十二萬二千八百九十一
- Chinese (financial)
- 壹拾貳萬貳仟捌佰玖拾壹
Also seen as
UTF-8 encoding: F0 9E 80 8B (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.224.11.
- Address
- 0.1.224.11
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.224.11
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 122,891 and was likely granted around 1871.
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.