491,340
491,340 is a composite number, even.
491,340 (four hundred ninety-one thousand three hundred forty) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 19 × 431. Its proper divisors sum to 960,180, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x77F4C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 43,194
- Square (n²)
- 241,414,995,600
- Cube (n³)
- 118,616,843,938,104,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 1,451,520
- φ(n) — Euler's totient
- 123,840
- Sum of prime factors
- 462
Primality
Prime factorization: 2 2 × 3 × 5 × 19 × 431
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√491,340 = [700; (1, 21, 1, 57, 2, 5, 4, 350, 4, 5, 2, 57, 1, 21, 1, 1400)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- four hundred ninety-one thousand three hundred forty
- Ordinal
- 491340th
- Binary
- 1110111111101001100
- Octal
- 1677514
- Hexadecimal
- 0x77F4C
- Base64
- B39M
- One's complement
- 4,294,475,955 (32-bit)
- Scientific notation
- 4.9134 × 10⁵
- As a duration
- 491,340 s = 5 days, 16 hours, 29 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵υϟατμʹ
- Chinese
- 四十九萬一千三百四十
- Chinese (financial)
- 肆拾玖萬壹仟參佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 491340, here are decompositions:
- 7 + 491333 = 491340
- 11 + 491329 = 491340
- 13 + 491327 = 491340
- 41 + 491299 = 491340
- 43 + 491297 = 491340
- 61 + 491279 = 491340
- 67 + 491273 = 491340
- 79 + 491261 = 491340
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.127.76.
- Address
- 0.7.127.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.127.76
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 491,340 and was likely granted around 1893.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 491340 first appears in π at position 269,254 of the decimal expansion (the 269,254ordinal-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°.