490,290
490,290 is a composite number, even.
490,290 (four hundred ninety thousand two hundred ninety) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2 × 3 × 5 × 59 × 277. Its proper divisors sum to 710,670, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77B32.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 92,094
- Square (n²)
- 240,384,284,100
- Cube (n³)
- 117,858,010,651,389,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 1,200,960
- φ(n) — Euler's totient
- 128,064
- Sum of prime factors
- 346
Primality
Prime factorization: 2 × 3 × 5 × 59 × 277
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,290 = [700; (4, 1, 4, 1, 4, 1, 2, 5, 2, 5, 2, 1, 4, 1, 4, 1, 4, 1400)]
Period length 18 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety thousand two hundred ninety
- Ordinal
- 490290th
- Binary
- 1110111101100110010
- Octal
- 1675462
- Hexadecimal
- 0x77B32
- Base64
- B3sy
- One's complement
- 4,294,477,005 (32-bit)
- Scientific notation
- 4.9029 × 10⁵
- As a duration
- 490,290 s = 5 days, 16 hours, 11 minutes, 30 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υϟσϟʹ
- Chinese
- 四十九萬零二百九十
- Chinese (financial)
- 肆拾玖萬零貳佰玖拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490290, here are decompositions:
- 7 + 490283 = 490290
- 13 + 490277 = 490290
- 19 + 490271 = 490290
- 23 + 490267 = 490290
- 41 + 490249 = 490290
- 43 + 490247 = 490290
- 67 + 490223 = 490290
- 83 + 490207 = 490290
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.123.50.
- Address
- 0.7.123.50
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.123.50
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 490,290 and was likely granted around 1892.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 490290 first appears in π at position 106,063 of the decimal expansion (the 106,063ordinal-suffix:rd 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°.