490,800
490,800 is a composite number, even.
490,800 (four hundred ninety thousand eight hundred) is an even 6-digit number. It is a composite number with 60 divisors, and factors as 2⁴ × 3 × 5² × 409. Its proper divisors sum to 1,085,240, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77D30.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 8,094
- Square (n²)
- 240,884,640,000
- Cube (n³)
- 118,226,181,312,000,000
- Divisor count
- 60
- σ(n) — sum of divisors
- 1,576,040
- φ(n) — Euler's totient
- 130,560
- Sum of prime factors
- 430
Primality
Prime factorization: 2 4 × 3 × 5 2 × 409
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,800 = [700; (1, 1, 3, 87, 3, 1, 1, 1400)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety thousand eight hundred
- Ordinal
- 490800th
- Binary
- 1110111110100110000
- Octal
- 1676460
- Hexadecimal
- 0x77D30
- Base64
- B30w
- One's complement
- 4,294,476,495 (32-bit)
- Scientific notation
- 4.908 × 10⁵
- As a duration
- 490,800 s = 5 days, 16 hours, 20 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
- Greek (Milesian)
- ͵υϟωʹ
- Chinese
- 四十九萬零八百
- Chinese (financial)
- 肆拾玖萬零捌佰
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490800, here are decompositions:
- 17 + 490783 = 490800
- 29 + 490771 = 490800
- 31 + 490769 = 490800
- 59 + 490741 = 490800
- 67 + 490733 = 490800
- 103 + 490697 = 490800
- 137 + 490663 = 490800
- 139 + 490661 = 490800
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.125.48.
- Address
- 0.7.125.48
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.125.48
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 490,800 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°.