124,021
124,021 is a prime, odd.
124,021 (one hundred twenty-four thousand twenty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1E475.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 120,421
- Recamán's sequence
- a(238,122) = 124,021
- Square (n²)
- 15,381,208,441
- Cube (n³)
- 1,907,592,852,061,261
- Divisor count
- 2
- σ(n) — sum of divisors
- 124,022
- φ(n) — Euler's totient
- 124,020
Primality
124,021 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√124,021 = [352; (6, 54, 78, 4, 6, 2, 5, 1, 1, 3, 1, 7, 1, 10, 1, 5, 1, 3, 1, 4, 4, 4, 1, 1, …)]
Representations
- In words
- one hundred twenty-four thousand twenty-one
- Ordinal
- 124021st
- Binary
- 11110010001110101
- Octal
- 362165
- Hexadecimal
- 0x1E475
- Base64
- AeR1
- One's complement
- 4,294,843,274 (32-bit)
- Scientific notation
- 1.24021 × 10⁵
- As a duration
- 124,021 s = 1 day, 10 hours, 27 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρκδκαʹ
- Mayan (base 20)
- 𝋯·𝋪·𝋡·𝋡
- Chinese
- 一十二萬四千零二十一
- Chinese (financial)
- 壹拾貳萬肆仟零貳拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.228.117.
- Address
- 0.1.228.117
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.228.117
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 124,021 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.
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.