21478095792

Names of 21478095792

• Cardinal: 21478095792 can be written as Twenty-one billion, four hundred seventy-eight million, ninety-five thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1478095792 × 10¹⁰

Factors of 21478095792

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1690

Divisors of 21478095792

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 353 521 706 811 1042 1059 1412 1563 1622 2084 2118 2433 2824 3126 3177 3244 4168 4236 4689 4866 5648 6252 6354 6488 7299 8336 8472 9378 9732 12504 12708 12976 14598 16944 18756 19464 25008 25416 29196 37512 38928 50832 58392 75024 116784 183913 286283 367826 422531 551739 572566 735652 845062 858849 1103478 1145132 1267593 1471304 1655217 1690124 1717698 2206956 2290264 2535186 2576547 2942608 3310434 3380248 3435396 3802779 4413912 4580528 5070372 5153094 6620868 6760496 6870792 7605558 8827824 10140744 10306188 13241736 13741584 15211116 20281488 20612376 26483472 30422232 41224752 60844464 149153443 298306886 447460329 596613772 894920658 1193227544 1342380987 1789841316 2386455088 2684761974 3579682632 5369523948 7159365264 10739047896 21478095792
• Sum of all divisors σ(n): 60469285968
• Sum of proper divisors (its aliquot sum) s(n): 38991190176
• 21478095792 is an abundant number, because the sum of its proper divisors (38991190176) is greater than itself. Its abundance is 17513094384

Bases of 21478095792

• Binary: 10100000000001100011011101110110000₂
• Hexadecimal: 0x50031BBB0
• Base-36: 9V7I4S0

Squares and roots of 21478095792

• 21478095792 squared (21478095792²) is 461308598850328107264
• 21478095792 cubed (21478095792³) is 9908030275780648158446243033088
• The square root of 21478095792 is 146554.0712228767
• The cube root of 21478095792 is 2779.7042536859

Scales and comparisons

• 21,478,095,792 seconds is equal to 682 years, 48 weeks, 5 days, 1 hour, 43 minutes, 12 seconds.
• To count from 1 to 21,478,095,792 would take you about one thousand, three hundred sixty-five 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 21478095792 cubic inches would be around 231.6 feet tall.

Recreational maths with 21478095792

• 21478095792 backwards is 29759087412
• The number of decimal digits it has is: 11
• The sum of 21478095792's digits is 54
• More coming soon!