490,920
490,920 is a composite number, even.
490,920 (four hundred ninety thousand nine hundred twenty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 5 × 4,091. Its proper divisors sum to 982,200, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77DA8.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 24
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 29,094
- Square (n²)
- 241,002,446,400
- Cube (n³)
- 118,312,920,986,688,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 1,473,120
- φ(n) — Euler's totient
- 130,880
- Sum of prime factors
- 4,105
Primality
Prime factorization: 2 3 × 3 × 5 × 4091
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,920 = [700; (1, 1, 1, 10, 1, 1, 1, 2, 1, 3, 2, 1, 57, 1, 2, 3, 1, 2, 1, 1, 1, 10, 1, 1, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety thousand nine hundred twenty
- Ordinal
- 490920th
- Binary
- 1110111110110101000
- Octal
- 1676650
- Hexadecimal
- 0x77DA8
- Base64
- B32o
- One's complement
- 4,294,476,375 (32-bit)
- Scientific notation
- 4.9092 × 10⁵
- As a duration
- 490,920 s = 5 days, 16 hours, 22 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵υϟϡκʹ
- Chinese
- 四十九萬零九百二十
- Chinese (financial)
- 肆拾玖萬零玖佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490920, here are decompositions:
- 7 + 490913 = 490920
- 29 + 490891 = 490920
- 43 + 490877 = 490920
- 61 + 490859 = 490920
- 71 + 490849 = 490920
- 83 + 490837 = 490920
- 137 + 490783 = 490920
- 149 + 490771 = 490920
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.125.168.
- Address
- 0.7.125.168
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.125.168
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 490,920 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 490920 first appears in π at position 274,059 of the decimal expansion (the 274,059ordinal-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°.