115,421
115,421 is a prime, odd.
115,421 (one hundred fifteen thousand four 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, 0x1C2DD.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 40
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 124,511
- Recamán's sequence
- a(72,249) = 115,421
- Square (n²)
- 13,322,007,241
- Cube (n³)
- 1,537,639,397,763,461
- Divisor count
- 2
- σ(n) — sum of divisors
- 115,422
- φ(n) — Euler's totient
- 115,420
Primality
115,421 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√115,421 = [339; (1, 2, 1, 3, 1, 14, 1, 1, 1, 7, 1, 1, 8, 1, 3, 2, 21, 2, 9, 1, 1, 1, 7, 2, …)]
Representations
- In words
- one hundred fifteen thousand four hundred twenty-one
- Ordinal
- 115421st
- Binary
- 11100001011011101
- Octal
- 341335
- Hexadecimal
- 0x1C2DD
- Base64
- AcLd
- One's complement
- 4,294,851,874 (32-bit)
- Scientific notation
- 1.15421 × 10⁵
- As a duration
- 115,421 s = 1 day, 8 hours, 3 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ριευκαʹ
- Mayan (base 20)
- 𝋮·𝋨·𝋫·𝋡
- Chinese
- 一十一萬五千四百二十一
- Chinese (financial)
- 壹拾壹萬伍仟肆佰貳拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.194.221.
- Address
- 0.1.194.221
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.194.221
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 115,421 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.