814945820

Names of 814945820

• Cardinal: 814945820 can be written as Eight hundred fourteen million, nine hundred forty-five thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 8.1494582 × 10⁸

Factors of 814945820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3776

Divisors of 814945820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 13 20 26 29 52 58 65 116 130 145 260 290 377 580 754 841 1508 1682 1885 3364 3727 3770 4205 7454 7540 8410 10933 14908 16820 18635 21866 37270 43732 48451 54665 74540 96902 108083 109330 193804 216166 218660 242255 432332 484510 540415 969020 1080830 1405079 2161660 2810158 3134407 5620316 6268814 7025395 12537628 14050790 15672035 28101580 31344070 40747291 62688140 81494582 162989164 203736455 407472910 814945820
• Sum of all divisors σ(n): 1909287744
• Sum of proper divisors (its aliquot sum) s(n): 1094341924
• 814945820 is an abundant number, because the sum of its proper divisors (1094341924) is greater than itself. Its abundance is 279396104

Bases of 814945820

• Binary: 110000100100110001011000011100₂
• Hexadecimal: 0x3093161C
• Base-36: DH747W

Squares and roots of 814945820

• 814945820 squared (814945820²) is 664136689535472400
• 814945820 cubed (814945820³) is 541235419045570974105368000
• The square root of 814945820 is 28547.2559101571
• The cube root of 814945820 is 934.0631641289

Scales and comparisons

• 814,945,820 seconds is equal to 25 years, 47 weeks, 3 days, 5 hours, 50 minutes, 20 seconds.
• To count from 1 to 814,945,820 would take you about thirty-eight years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 814945820 cubic inches would be around 77.8 feet tall.

Recreational maths with 814945820

• 814945820 backwards is 028549418
• The number of decimal digits it has is: 9
• The sum of 814945820's digits is 41
• More coming soon!