21494638720760

Names of 21494638720760

• Cardinal: 21494638720760 can be written as Twenty-one trillion, four hundred ninety-four billion, six hundred thirty-eight million, seven hundred twenty thousand, seven hundred sixty.

Scientific notation

• Scientific notation: 2.149463872076 × 10¹³

Factors of 21494638720760

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 166136

Divisors of 21494638720760

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 40 79 158 316 395 632 790 1580 3160 73483 92567 146966 185134 293932 367415 370268 462835 587864 734830 740536 925670 1469660 1851340 2939320 3702680 5805157 7312793 11610314 14625586 23220628 29025785 29251172 36563965 46441256 58051570 58502344 73127930 116103140 146255860 232206280 292511720 6802100861 13604201722 27208403444 34010504305 54416806888 68021008610 136042017220 272084034440 537365968019 1074731936038 2149463872076 2686829840095 4298927744152 5373659680190 10747319360380 21494638720760
• Sum of all divisors σ(n): 48976321766400
• Sum of proper divisors (its aliquot sum) s(n): 27481683045640
• 21494638720760 is an abundant number, because the sum of its proper divisors (27481683045640) is greater than itself. Its abundance is 5987044324880

Bases of 21494638720760

• Binary: 100111000110010011100010011100011011011111000₂
• Hexadecimal: 0x138C9C4E36F8
• Base-36: 7MAI0X3AW

Squares and roots of 21494638720760

• 21494638720760 squared (21494638720760²) is 462019493735995089254977600
• 21494638720760 cubed (21494638720760³) is 9930942099803652318469253741526454976000
• The square root of 21494638720760 is 4636231.0900946255
• The cube root of 21494638720760 is 27804.1773481951

Scales and comparisons

• 21,494,638,720,760 seconds is equal to 683,463 years, 1 week, 1 day, 17 hours, 59 minutes, 20 seconds.
• To count from 1 to 21,494,638,720,760 would take you about one million, seven hundred eight thousand, six hundred fifty-seven 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 21494638720760 cubic inches would be around 2317 feet tall.

Recreational maths with 21494638720760

• 21494638720760 backwards is 06702783649412
• The number of decimal digits it has is: 14
• The sum of 21494638720760's digits is 59
• More coming soon!