78721142006

Names of 78721142006

• Cardinal: 78721142006 can be written as Seventy-eight billion, seven hundred twenty-one million, one hundred forty-two thousand and six.

Scientific notation

• Scientific notation: 7.8721142006 × 10¹⁰

Factors of 78721142006

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 389

Divisors of 78721142006

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 13 26 67 134 169 307 338 614 871 1742 2197 3991 4394 4489 7982 8978 11323 20569 22646 28561 41138 51883 57122 58357 103766 116714 147199 267397 294398 534794 674479 758641 1348958 1378123 1517282 1913587 2756246 3476161 3827174 6952322 8768227 9862333 17536454 17915599 19724666 35831198 45190093 90380186 128210329 232902787 256420658 465805574 587471209 1174942418 3027736231 6055472462 39360571003 78721142006
• Sum of all divisors σ(n): 130282278588
• Sum of proper divisors (its aliquot sum) s(n): 51561136582
• 78721142006 is a deficient number, because the sum of its proper divisors (51561136582) is less than itself. Its deficiency is 27160005424

Bases of 78721142006

• Binary: 1001001010100001001010100110011110110₂
• Hexadecimal: 0x1254254CF6
• Base-36: 105WJ9X2

Squares and roots of 78721142006

• 78721142006 squared (78721142006²) is 6197018198728817704036
• 78721142006 cubed (78721142006³) is 487836349635897587163904835336216
• The square root of 78721142006 is 280572.8818079181
• The cube root of 78721142006 is 4285.7858034657

Scales and comparisons

• 78,721,142,006 seconds is equal to 2,503 years, 4 weeks, 4 days, 7 hours, 53 minutes, 26 seconds.
• To count from 1 to 78,721,142,006 would take you about five thousand and six 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 78721142006 cubic inches would be around 357.1 feet tall.

Recreational maths with 78721142006

• 78721142006 backwards is 60024112787
• The number of decimal digits it has is: 11
• The sum of 78721142006's digits is 38
• More coming soon!