21540327728720

Names of 21540327728720

• Cardinal: 21540327728720 can be written as Twenty-one trillion, five hundred forty billion, three hundred twenty-seven million, seven hundred twenty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.154032772872 × 10¹³

Factors of 21540327728720

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 653

Divisors of 21540327728720

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 617 841 1160 1234 1682 2320 2468 3085 3364 4205 4936 6170 6728 8410 9872 12340 13456 16820 17893 24389 24680 33640 35786 48778 49360 67280 71572 89465 97556 121945 143144 178930 195112 243890 286288 357860 380689 390224 487780 518897 707281 715720 761378 975560 1037794 1414562 1431440 1522756 1903445 1951120 2075588 2594485 2829124 3045512 3536405 3806890 4151176 5188970 5658248 6091024 7072810 7613780 8302352 10377940 11039981 11316496 14145620 15048013 15227560 20755880 22079962 28291240 30096026 30455120 41511760 44159924 55199905 56582480 60192052 75240065 88319848 110399810 120384104 150480130 176639696 220799620 240768208 300960260 320159449 436392377 441599240 601920520 640318898 872784754 883198480 1203841040 1280637796 1600797245 1745569508 2181961885 2561275592 3201594490 3491139016 4363923770 5122551184 6403188980 6982278032 8727847540 9284624021 12806377960 17455695080 18569248042 25612755920 34911390160 37138496084 46423120105 74276992168 92846240210 148553984336 185692480420 269254096609 371384960840 538508193218 742769921680 1077016386436 1346270483045 2154032772872 2692540966090 4308065545744 5385081932180 10770163864360 21540327728720
• Sum of all divisors σ(n): 51954080062182
• Sum of proper divisors (its aliquot sum) s(n): 30413752333462
• 21540327728720 is an abundant number, because the sum of its proper divisors (30413752333462) is greater than itself. Its abundance is 8873424604742

Bases of 21540327728720

• Binary: 100111001011100111111100101010010011001010000₂
• Hexadecimal: 0x13973F952650
• Base-36: 7MVHMZ3GW

Squares and roots of 21540327728720

• 21540327728720 squared (21540327728720²) is 463985718660663713912838400
• 21540327728720 cubed (21540327728720³) is 9994404441396371337115850236720398848000
• The square root of 21540327728720 is 4641155.8612828335
• The cube root of 21540327728720 is 27823.8635945503

Scales and comparisons

• 21,540,327,728,720 seconds is equal to 684,915 years, 41 weeks, 1 day, 17 hours, 5 minutes, 20 seconds.
• To count from 1 to 21,540,327,728,720 would take you about one million, seven hundred twelve thousand, two hundred eighty-nine 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 21540327728720 cubic inches would be around 2318.7 feet tall.

Recreational maths with 21540327728720

• 21540327728720 backwards is 02782772304512
• The number of decimal digits it has is: 14
• The sum of 21540327728720's digits is 50
• More coming soon!