491,590
491,590 is a composite number, even.
491,590 (four hundred ninety-one thousand five hundred ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 5 × 11 × 41 × 109. Its proper divisors sum to 506,330, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x78046.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 28
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 95,194
- Square (n²)
- 241,660,728,100
- Cube (n³)
- 118,797,997,326,679,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 997,920
- φ(n) — Euler's totient
- 172,800
- Sum of prime factors
- 168
Primality
Prime factorization: 2 × 5 × 11 × 41 × 109
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√491,590 = [701; (7, 2, 2, 1, 1, 2, 1, 4, 1, 3, 1, 155, 66, 1, 3, 3, 6, 4, 1, 1, 1, 16, 1, 2, …)]
Representations
- In words
- four hundred ninety-one thousand five hundred ninety
- Ordinal
- 491590th
- Binary
- 1111000000001000110
- Octal
- 1700106
- Hexadecimal
- 0x78046
- Base64
- B4BG
- One's complement
- 4,294,475,705 (32-bit)
- Scientific notation
- 4.9159 × 10⁵
- As a duration
- 491,590 s = 5 days, 16 hours, 33 minutes, 10 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υϟαφϟʹ
- Chinese
- 四十九萬一千五百九十
- Chinese (financial)
- 肆拾玖萬壹仟伍佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 491590, here are decompositions:
- 53 + 491537 = 491590
- 59 + 491531 = 491590
- 89 + 491501 = 491590
- 101 + 491489 = 491590
- 107 + 491483 = 491590
- 167 + 491423 = 491590
- 173 + 491417 = 491590
- 233 + 491357 = 491590
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.128.70.
- Address
- 0.7.128.70
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.128.70
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 491,590 and was likely granted around 1893.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.