490,820
490,820 is a composite number, even.
490,820 (four hundred ninety thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 11 × 23 × 97. Its proper divisors sum to 694,588, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77D44.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 28,094
- Square (n²)
- 240,904,272,400
- Cube (n³)
- 118,240,634,979,368,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,185,408
- φ(n) — Euler's totient
- 168,960
- Sum of prime factors
- 140
Primality
Prime factorization: 2 2 × 5 × 11 × 23 × 97
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,820 = [700; (1, 1, 2, 2, 2, 1, 5, 28, 2, 2, 1, 1, 1, 2, 3, 4, 1, 10, 2, 21, 2, 2, 2, 5, …)]
Representations
- In words
- four hundred ninety thousand eight hundred twenty
- Ordinal
- 490820th
- Binary
- 1110111110101000100
- Octal
- 1676504
- Hexadecimal
- 0x77D44
- Base64
- B31E
- One's complement
- 4,294,476,475 (32-bit)
- Scientific notation
- 4.9082 × 10⁵
- As a duration
- 490,820 s = 5 days, 16 hours, 20 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵υϟωκʹ
- Chinese
- 四十九萬零八百二十
- Chinese (financial)
- 肆拾玖萬零捌佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490820, here are decompositions:
- 37 + 490783 = 490820
- 79 + 490741 = 490820
- 157 + 490663 = 490820
- 193 + 490627 = 490820
- 229 + 490591 = 490820
- 241 + 490579 = 490820
- 271 + 490549 = 490820
- 277 + 490543 = 490820
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.125.68.
- Address
- 0.7.125.68
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.125.68
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 490,820 and was likely granted around 1892.
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°.