668446378639760

Names of 668446378639760

• Cardinal: 668446378639760 can be written as Six hundred sixty-eight trillion, four hundred forty-six billion, three hundred seventy-eight million, six hundred thirty-nine thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 6.6844637863976 × 10¹⁴

Factors of 668446378639760

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1193654247585

Divisors of 668446378639760

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 1193654247571 2387308495142 4774616990284 5968271237855 8355579732997 9549233980568 11936542475710 16711159465994 19098467961136 23873084951420 33422318931988 41777898664985 47746169902840 66844637863976 83555797329970 95492339805680 133689275727952 167111594659940 334223189319880 668446378639760
• Sum of all divisors σ(n): 1776157520387136
• Sum of proper divisors (its aliquot sum) s(n): 1107711141747376
• 668446378639760 is an abundant number, because the sum of its proper divisors (1107711141747376) is greater than itself. Its abundance is 439264763107616

Bases of 668446378639760

• Binary: 10010111111111001011001100111100110100000110010000₂
• Hexadecimal: 0x25FF2CCF34190
• Base-36: 6KY00Z2G7K

Squares and roots of 668446378639760

• 668446378639760 squared (668446378639760²) is 446820561116609393987852857600
• 668446378639760 cubed (668446378639760³) is 298675585980183107231917244557338516978176000
• The square root of 668446378639760 is 25854329.9785502081
• The cube root of 668446378639760 is 87435.7134827499

Scales and comparisons

• 668,446,378,639,760 seconds is equal to 21,254,527 years, 10 weeks, 2 days, 22 hours, 9 minutes, 20 seconds.
• To count from 1 to 668,446,378,639,760 would take you about fifty-three million, one hundred thirty-six thousand, three hundred eighteen 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 668446378639760 cubic inches would be around 7286.3 feet tall.

Recreational maths with 668446378639760

• 668446378639760 backwards is 067936873644866
• The number of decimal digits it has is: 15
• The sum of 668446378639760's digits is 83
• More coming soon!