813025408

Names of 813025408

• Cardinal: 813025408 can be written as Eight hundred thirteen million, twenty-five thousand, four hundred eight.

Scientific notation

• Scientific notation: 8.13025408 × 10⁸

Factors of 813025408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 774

Divisors of 813025408

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 13 16 17 26 32 34 41 52 64 68 82 104 128 136 164 208 221 272 328 416 442 533 544 656 697 701 832 884 1066 1088 1312 1394 1402 1664 1768 2132 2176 2624 2788 2804 3536 4264 5248 5576 5608 7072 8528 9061 9113 11152 11216 11917 14144 17056 18122 18226 22304 22432 23834 28288 28741 34112 36244 36452 44608 44864 47668 57482 68224 72488 72904 89216 89728 95336 114964 144976 145808 154921 190672 229928 289952 291616 309842 373633 381344 459856 488597 579904 583232 619684 747266 762688 919712 977194 1159808 1166464 1239368 1494532 1525376 1839424 1954388 2478736 2989064 3678848 3908776 4957472 5978128 6351761 7817552 9914944 11956256 12703522 15635104 19829888 23912512 25407044 31270208 47825024 50814088 62540416 101628176 203256352 406512704 813025408
• Sum of all divisors σ(n): 1894641840
• Sum of proper divisors (its aliquot sum) s(n): 1081616432
• 813025408 is an abundant number, because the sum of its proper divisors (1081616432) is greater than itself. Its abundance is 268591024

Bases of 813025408

• Binary: 110000011101011100100010000000₂
• Hexadecimal: 0x3075C880
• Base-36: DG1YF4

Squares and roots of 813025408

• 813025408 squared (813025408²) is 661010314053566464
• 813025408 cubed (813025408³) is 537418180275609008248717312
• The square root of 813025408 is 28513.6004040177
• The cube root of 813025408 is 933.3288834255

Scales and comparisons

• 813,025,408 seconds is equal to 25 years, 44 weeks, 2 days, 23 minutes, 28 seconds.
• To count from 1 to 813,025,408 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 813025408 cubic inches would be around 77.8 feet tall.

Recreational maths with 813025408

• 813025408 backwards is 804520318
• The number of decimal digits it has is: 9
• The sum of 813025408's digits is 31
• More coming soon!