990,023
990,023 is a prime, odd.
990,023 (nine hundred ninety thousand twenty-three) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF1B47.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 320,099
- Square (n²)
- 980,145,540,529
- Cube (n³)
- 970,366,628,471,142,167
- Divisor count
- 2
- σ(n) — sum of divisors
- 990,024
- φ(n) — Euler's totient
- 990,022
Primality
990,023 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,023 = [994; (1, 993, 1, 1988)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety thousand twenty-three
- Ordinal
- 990023rd
- Binary
- 11110001101101000111
- Octal
- 3615507
- Hexadecimal
- 0xF1B47
- Base64
- DxtH
- One's complement
- 4,293,977,272 (32-bit)
- Scientific notation
- 9.90023 × 10⁵
- As a duration
- 990,023 s = 11 days, 11 hours, 23 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟκγʹ
- Chinese
- 九十九萬零二十三
- Chinese (financial)
- 玖拾玖萬零貳拾參
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.27.71.
- Address
- 0.15.27.71
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.27.71
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 990,023 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.