490,420
490,420 is a composite number, even.
490,420 (four hundred ninety thousand four hundred twenty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 7 × 31 × 113. Its proper divisors sum to 735,308, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77BB4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 24,094
- Square (n²)
- 240,511,776,400
- Cube (n³)
- 117,951,785,382,088,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,225,728
- φ(n) — Euler's totient
- 161,280
- Sum of prime factors
- 160
Primality
Prime factorization: 2 2 × 5 × 7 × 31 × 113
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√490,420 = [700; (3, 2, 1, 154, 1, 11, 1, 5, 1, 16, 2, 3, 2, 1, 1, 6, 3, 1, 1, 1, 1, 1, 9, 2, …)]
Representations
- In words
- four hundred ninety thousand four hundred twenty
- Ordinal
- 490420th
- Binary
- 1110111101110110100
- Octal
- 1675664
- Hexadecimal
- 0x77BB4
- Base64
- B3u0
- One's complement
- 4,294,476,875 (32-bit)
- Scientific notation
- 4.9042 × 10⁵
- As a duration
- 490,420 s = 5 days, 16 hours, 13 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵υϟυκʹ
- Chinese
- 四十九萬零四百二十
- Chinese (financial)
- 肆拾玖萬零肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 490420, here are decompositions:
- 3 + 490417 = 490420
- 53 + 490367 = 490420
- 107 + 490313 = 490420
- 137 + 490283 = 490420
- 149 + 490271 = 490420
- 173 + 490247 = 490420
- 179 + 490241 = 490420
- 197 + 490223 = 490420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.123.180.
- Address
- 0.7.123.180
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.123.180
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 490,420 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 490420 first appears in π at position 272,023 of the decimal expansion (the 272,023ordinal-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°.