990,828
990,828 is a composite number, even.
990,828 (nine hundred ninety thousand eight hundred twenty-eight) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 17 × 1,619. Its proper divisors sum to 1,662,732, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF1E6C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 36
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 828,099
- Square (n²)
- 981,740,125,584
- Cube (n³)
- 972,735,605,152,143,552
- Divisor count
- 36
- σ(n) — sum of divisors
- 2,653,560
- φ(n) — Euler's totient
- 310,656
- Sum of prime factors
- 1,646
Primality
Prime factorization: 2 2 × 3 2 × 17 × 1619
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,828 = [995; (2, 2, 11, 4, 7, 1, 2, 5, 5, 1, 41, 1, 1, 12, 1, 1, 41, 1, 5, 5, 2, 1, 7, 4, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- nine hundred ninety thousand eight hundred twenty-eight
- Ordinal
- 990828th
- Binary
- 11110001111001101100
- Octal
- 3617154
- Hexadecimal
- 0xF1E6C
- Base64
- Dx5s
- One's complement
- 4,293,976,467 (32-bit)
- Scientific notation
- 9.90828 × 10⁵
- As a duration
- 990,828 s = 11 days, 11 hours, 13 minutes, 48 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟωκηʹ
- Chinese
- 九十九萬零八百二十八
- Chinese (financial)
- 玖拾玖萬零捌佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990828, here are decompositions:
- 19 + 990809 = 990828
- 29 + 990799 = 990828
- 31 + 990797 = 990828
- 61 + 990767 = 990828
- 67 + 990761 = 990828
- 109 + 990719 = 990828
- 191 + 990637 = 990828
- 197 + 990631 = 990828
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.30.108.
- Address
- 0.15.30.108
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.30.108
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 990,828 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 990828 first appears in π at position 295,818 of the decimal expansion (the 295,818ordinal-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°.