990,908
990,908 is a composite number, even.
990,908 (nine hundred ninety thousand nine hundred eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 191 × 1,297. Written other ways, in hexadecimal, 0xF1EBC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 35
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 809,099
- Flips to (rotate 180°)
- 806,066
- Square (n²)
- 981,898,664,464
- Cube (n³)
- 972,971,241,806,693,312
- Divisor count
- 12
- σ(n) — sum of divisors
- 1,744,512
- φ(n) — Euler's totient
- 492,480
- Sum of prime factors
- 1,492
Primality
Prime factorization: 2 2 × 191 × 1297
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,908 = [995; (2, 3, 1, 14, 5, 4, 2, 2, 70, 1, 2, 3, 1, 2, 25, 1, 5, 18, 1, 39, 1, 2, 6, 1, …)]
Representations
- In words
- nine hundred ninety thousand nine hundred eight
- Ordinal
- 990908th
- Binary
- 11110001111010111100
- Octal
- 3617274
- Hexadecimal
- 0xF1EBC
- Base64
- Dx68
- One's complement
- 4,293,976,387 (32-bit)
- Scientific notation
- 9.90908 × 10⁵
- As a duration
- 990,908 s = 11 days, 11 hours, 15 minutes, 8 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟϡηʹ
- Chinese
- 九十九萬零九百零八
- Chinese (financial)
- 玖拾玖萬零玖佰零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990908, here are decompositions:
- 19 + 990889 = 990908
- 67 + 990841 = 990908
- 109 + 990799 = 990908
- 271 + 990637 = 990908
- 277 + 990631 = 990908
- 349 + 990559 = 990908
- 379 + 990529 = 990908
- 397 + 990511 = 990908
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.30.188.
- Address
- 0.15.30.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.30.188
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 990,908 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 990908 first appears in π at position 373,174 of the decimal expansion (the 373,174ordinal-suffix:th 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°.