64339642864

Names of 64339642864

• Cardinal: 64339642864 can be written as Sixty-four billion, three hundred thirty-nine million, six hundred forty-two thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 6.4339642864 × 10¹⁰

Factors of 64339642864

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 26737

Divisors of 64339642864

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 3539 7078 14156 23189 24773 28312 46378 49546 56624 92756 99092 162323 173411 185512 198184 324646 346822 371024 396368 649292 693644 1136261 1298584 1387288 2272522 2597168 2774576 4545044 9090088 18180176 82065871 164131742 328263484 574461097 656526968 1148922194 1313053936 2297844388 4021227679 4595688776 8042455358 9191377552 16084910716 32169821432 64339642864
• Sum of all divisors σ(n): 145057624200
• Sum of proper divisors (its aliquot sum) s(n): 80717981336
• 64339642864 is an abundant number, because the sum of its proper divisors (80717981336) is greater than itself. Its abundance is 16378338472

Bases of 64339642864

• Binary: 111011111010111100010000100111110000₂
• Hexadecimal: 0xEFAF109F0
• Base-36: TK25U5S

Squares and roots of 64339642864

• 64339642864 squared (64339642864²) is 4139589643867066122496
• 64339642864 cubed (64339642864³) is 266339719289919982212865916268544
• The square root of 64339642864 is 253652.6027148155
• The cube root of 64339642864 is 4007.0634127085

Scales and comparisons

• 64,339,642,864 seconds is equal to 2,045 years, 41 weeks, 4 days, 19 hours, 1 minute, 4 seconds.
• To count from 1 to 64,339,642,864 would take you about four thousand and ninety-one 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 64339642864 cubic inches would be around 333.9 feet tall.

Recreational maths with 64339642864

• 64339642864 backwards is 46824693346
• The number of decimal digits it has is: 11
• The sum of 64339642864's digits is 55
• More coming soon!