990,506
990,506 is a composite number, even.
990,506 (nine hundred ninety thousand five hundred six) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2 × 11² × 4,093. Written other ways, in hexadecimal, 0xF1D2A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 29
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 605,099
- Square (n²)
- 981,102,136,036
- Cube (n³)
- 971,787,552,356,474,216
- Divisor count
- 12
- σ(n) — sum of divisors
- 1,633,506
- φ(n) — Euler's totient
- 450,120
- Sum of prime factors
- 4,117
Primality
Prime factorization: 2 × 11 2 × 4093
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√990,506 = [995; (4, 7, 3, 1, 4, 1, 3, 1, 2, 10, 2, 2, 30, 4, 1, 1, 3, 2, 2, 18, 1, 10, 1, 3, …)]
Representations
- In words
- nine hundred ninety thousand five hundred six
- Ordinal
- 990506th
- Binary
- 11110001110100101010
- Octal
- 3616452
- Hexadecimal
- 0xF1D2A
- Base64
- Dx0q
- One's complement
- 4,293,976,789 (32-bit)
- Scientific notation
- 9.90506 × 10⁵
- As a duration
- 990,506 s = 11 days, 11 hours, 8 minutes, 26 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ϡϟφϛʹ
- Chinese
- 九十九萬零五百零六
- Chinese (financial)
- 玖拾玖萬零伍佰零陸
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 990506, here are decompositions:
- 3 + 990503 = 990506
- 19 + 990487 = 990506
- 37 + 990469 = 990506
- 43 + 990463 = 990506
- 109 + 990397 = 990506
- 157 + 990349 = 990506
- 193 + 990313 = 990506
- 199 + 990307 = 990506
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.29.42.
- Address
- 0.15.29.42
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.29.42
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 990,506 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 990506 first appears in π at position 182,291 of the decimal expansion (the 182,291ordinal-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°.