640221366213

Names of 640221366213

• Cardinal: 640221366213 can be written as Six hundred forty billion, two hundred twenty-one million, three hundred sixty-six thousand, two hundred thirteen.

Scientific notation

• Scientific notation: 6.40221366213 × 10¹¹

Factors of 640221366213

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6544

Divisors of 640221366213

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 13 33 39 61 99 117 143 183 429 549 671 793 1287 1723 2013 2379 4733 5169 6039 7137 8723 14199 15507 18953 22399 26169 42597 52063 56859 61529 67197 78507 105103 156189 170577 184587 201591 246389 288713 315309 468567 553761 676819 739167 866139 945927 1156133 1366339 2030457 2217501 2598417 3175843 3468399 3753269 4099017 6091371 8154959 9527529 10405197 11259807 12297051 15029729 24464877 28582587 33779421 41285959 45089187 73394631 89704549 106014467 123857877 135267561 269113647 318043401 371573631 497452499 807340941 954130203 1166159137 1492357497 3498477411 4477072491 5471977489 6466882487 10495432233 16415932467 19400647461 49247797401 58201942383 71135707357 213407122071 640221366213
• Sum of all divisors σ(n): 1105121017728
• Sum of proper divisors (its aliquot sum) s(n): 464899651515
• 640221366213 is a deficient number, because the sum of its proper divisors (464899651515) is less than itself. Its deficiency is 175321714698

Bases of 640221366213

• Binary: 1001010100010000001010101100011111000101₂
• Hexadecimal: 0x95102AC7C5
• Base-36: 86439RR9

Squares and roots of 640221366213

• 640221366213 squared (640221366213²) is 409883397755640257961369
• 640221366213 cubed (640221366213³) is 262416108899142503878571411355825597
• The square root of 640221366213 is 800138.3419215705
• The cube root of 640221366213 is 8618.7322269457

Scales and comparisons

• 640,221,366,213 seconds is equal to 20,357 years, 3 weeks, 12 hours, 23 minutes, 33 seconds.
• To count from 1 to 640,221,366,213 would take you about forty thousand, seven hundred fourteen 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 640221366213 cubic inches would be around 718.2 feet tall.

Recreational maths with 640221366213

• 640221366213 backwards is 312663122046
• The number of decimal digits it has is: 12
• The sum of 640221366213's digits is 36
• More coming soon!