990,600
990,600 is a composite number, even.
990,600 (nine hundred ninety thousand six hundred) is an even 6-digit number. It is a composite number with 96 divisors, and factors as 2³ × 3 × 5² × 13 × 127. Its proper divisors sum to 2,342,520, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1D88.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 6,099
- Flips to (rotate 180°)
- 9,066
- Square (n²)
- 981,288,360,000
- Cube (n³)
- 972,064,249,416,000,000
- Divisor count
- 96
- σ(n) — sum of divisors
- 3,333,120
- φ(n) — Euler's totient
- 241,920
- Sum of prime factors
- 159
Primality
Prime factorization: 2 3 × 3 × 5 2 × 13 × 127
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,600 = [995; (3, 2, 5, 1, 34, 1, 2, 2, 1, 5, 1, 1, 2, 40, 4, 2, 1, 14, 1, 2, 1, 4, 1, 3, …)]
Period length 56 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety thousand six hundred
- Ordinal
- 990600th
- Binary
- 11110001110110001000
- Octal
- 3616610
- Hexadecimal
- 0xF1D88
- Base64
- Dx2I
- One's complement
- 4,293,976,695 (32-bit)
- Scientific notation
- 9.906 × 10⁵
- As a duration
- 990,600 s = 11 days, 11 hours, 10 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵ϡϟχʹ
- Chinese
- 九十九萬零六百
- Chinese (financial)
- 玖拾玖萬零陸佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990600, here are decompositions:
- 7 + 990593 = 990600
- 11 + 990589 = 990600
- 41 + 990559 = 990600
- 53 + 990547 = 990600
- 71 + 990529 = 990600
- 89 + 990511 = 990600
- 97 + 990503 = 990600
- 103 + 990497 = 990600
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.29.136.
- Address
- 0.15.29.136
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.29.136
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 990,600 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 990600 first appears in π at position 261,976 of the decimal expansion (the 261,976ordinal-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°.