990,966
990,966 is a composite number, even.
990,966 (nine hundred ninety thousand nine hundred sixty-six) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 165,161. Its proper divisors sum to 990,978, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1EF6.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 39
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 669,099
- Flips to (rotate 180°)
- 996,066
- Square (n²)
- 982,013,613,156
- Cube (n³)
- 973,142,102,174,748,696
- Divisor count
- 8
- σ(n) — sum of divisors
- 1,981,944
- φ(n) — Euler's totient
- 330,320
- Sum of prime factors
- 165,166
Primality
Prime factorization: 2 × 3 × 165161
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,966 = [995; (2, 8, 1, 2, 13, 60, 3, 1, 8, 1, 1, 26, 1, 2, 1, 15, 1, 2, 2, 2, 6, 2, 4, 1, …)]
Representations
- In words
- nine hundred ninety thousand nine hundred sixty-six
- Ordinal
- 990966th
- Binary
- 11110001111011110110
- Octal
- 3617366
- Hexadecimal
- 0xF1EF6
- Base64
- Dx72
- One's complement
- 4,293,976,329 (32-bit)
- Scientific notation
- 9.90966 × 10⁵
- As a duration
- 990,966 s = 11 days, 11 hours, 16 minutes, 6 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟϡξϛʹ
- Chinese
- 九十九萬零九百六十六
- Chinese (financial)
- 玖拾玖萬零玖佰陸拾陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990966, here are decompositions:
- 5 + 990961 = 990966
- 13 + 990953 = 990966
- 43 + 990923 = 990966
- 73 + 990893 = 990966
- 79 + 990887 = 990966
- 157 + 990809 = 990966
- 167 + 990799 = 990966
- 199 + 990767 = 990966
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.30.246.
- Address
- 0.15.30.246
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.30.246
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 990,966 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 990966 first appears in π at position 497,401 of the decimal expansion (the 497,401ordinal-suffix:st digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.