490,842
490,842 is a composite number, even.
490,842 (four hundred ninety thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2 × 3² × 11 × 37 × 67. Its proper divisors sum to 718,470, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77D5A.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 27
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 248,094
- Square (n²)
- 240,925,868,964
- Cube (n³)
- 118,256,535,374,027,688
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,209,312
- φ(n) — Euler's totient
- 142,560
- Sum of prime factors
- 123
Primality
Prime factorization: 2 × 3 2 × 11 × 37 × 67
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,842 = [700; (1, 1, 1, 1, 33, 1, 1, 2, 1, 4, 7, 2, 18, 2, 7, 4, 1, 2, 1, 1, 33, 1, 1, 1, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety thousand eight hundred forty-two
- Ordinal
- 490842nd
- Binary
- 1110111110101011010
- Octal
- 1676532
- Hexadecimal
- 0x77D5A
- Base64
- B31a
- One's complement
- 4,294,476,453 (32-bit)
- Scientific notation
- 4.90842 × 10⁵
- As a duration
- 490,842 s = 5 days, 16 hours, 20 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵υϟωμβʹ
- Chinese
- 四十九萬零八百四十二
- Chinese (financial)
- 肆拾玖萬零捌佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490842, here are decompositions:
- 5 + 490837 = 490842
- 13 + 490829 = 490842
- 59 + 490783 = 490842
- 71 + 490771 = 490842
- 73 + 490769 = 490842
- 101 + 490741 = 490842
- 109 + 490733 = 490842
- 179 + 490663 = 490842
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.125.90.
- Address
- 0.7.125.90
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.125.90
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 490,842 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 490842 first appears in π at position 547,874 of the decimal expansion (the 547,874ordinal-suffix:th 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°.