997,021
997,021 is a prime, odd.
997,021 (nine hundred ninety-seven 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, 0xF369D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 28
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 120,799
- Square (n²)
- 994,050,874,441
- Cube (n³)
- 991,089,596,886,040,261
- Divisor count
- 2
- σ(n) — sum of divisors
- 997,022
- φ(n) — Euler's totient
- 997,020
Primality
997,021 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√997,021 = [998; (1, 1, 26, 7, 1, 7, 1, 5, 2, 4, 1, 3, 18, 1, 3, 8, 2, 1, 1, 4, 3, 2, 12, 2, …)]
Representations
- In words
- nine hundred ninety-seven thousand twenty-one
- Ordinal
- 997021st
- Binary
- 11110011011010011101
- Octal
- 3633235
- Hexadecimal
- 0xF369D
- Base64
- Dzad
- One's complement
- 4,293,970,274 (32-bit)
- Scientific notation
- 9.97021 × 10⁵
- As a duration
- 997,021 s = 11 days, 12 hours, 57 minutes, 1 second
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓏺
- Greek (Milesian)
- ͵ϡϟζκαʹ
- Chinese
- 九十九萬七千零二十一
- Chinese (financial)
- 玖拾玖萬柒仟零貳拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.54.157.
- Address
- 0.15.54.157
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.54.157
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 997,021 and was likely granted around 1911.
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.