21310784100

Names of 21310784100

• Cardinal: 21310784100 can be written as Twenty-one billion, three hundred ten million, seven hundred eighty-four thousand, one hundred.

Scientific notation

• Scientific notation: 2.13107841 × 10¹⁰

Factors of 21310784100

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 411

Divisors of 21310784100

• Number of divisors d(n): 234
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 27 30 36 45 50 54 60 75 81 90 100 108 135 150 162 180 225 243 270 300 324 401 405 450 486 540 675 729 802 810 900 972 1203 1215 1350 1458 1604 1620 2005 2025 2187 2406 2430 2700 2916 3609 3645 4010 4050 4374 4812 4860 6015 6075 6561 7218 7290 8020 8100 8748 10025 10827 10935 12030 12150 13122 14436 14580 18045 18225 19683 20050 21654 21870 24060 24300 26244 30075 32481 32805 36090 36450 39366 40100 43308 43740 54135 54675 59049 60150 64962 65610 72180 72900 78732 90225 97443 98415 108270 109350 118098 120300 129924 131220 162405 164025 177147 180450 194886 196830 216540 218700 236196 270675 292329 295245 324810 328050 354294 360900 389772 393660 487215 492075 531441 541350 584658 590490 649620 656100 708588 812025 876987 885735 974430 984150 1062882 1082700 1169316 1180980 1461645 1476225 1624050 1753974 1771470 1948860 1968300 2125764 2436075 2630961 2657205 2923290 2952450 3248100 3507948 3542940 4384935 4428675 4872150 5261922 5314410 5846580 5904900 7308225 7892883 8769870 8857350 9744300 10523844 10628820 13154805 13286025 14616450 15785766 17539740 17714700 21924675 23678649 26309610 26572050 29232900 31571532 39464415 43849350 47357298 52619220 53144100 65774025 71035947 78928830 87698700 94714596 118393245 131548050 142071894 157857660 197322075 213107841 236786490 263096100 284143788 355179735 394644150 426215682 473572980 591966225 710359470 789288300 852431364 1065539205 1183932450 1420718940 1775898675 2131078410 2367864900 3551797350 4262156820 5327696025 7103594700 10655392050 21310784100
• Sum of all divisors σ(n): 69539542674
• Sum of proper divisors (its aliquot sum) s(n): 48228758574
• 21310784100 is an abundant number, because the sum of its proper divisors (48228758574) is greater than itself. Its abundance is 26917974474

Bases of 21310784100

• Binary: 10011110110001110001100001001100100₂
• Hexadecimal: 0x4F638C264
• Base-36: 9SFW290

Squares and roots of 21310784100

• 21310784100 squared (21310784100²) is 454149518956812810000
• 21310784100 cubed (21310784100³) is 9678282347607495018024321000000
• The square root of 21310784100 is 145982.1362359107
• The cube root of 21310784100 is 2772.4675800887

Scales and comparisons

• 21,310,784,100 seconds is equal to 677 years, 32 weeks, 14 hours, 15 minutes.
• To count from 1 to 21,310,784,100 would take you about one thousand, three hundred fifty-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 21310784100 cubic inches would be around 231 feet tall.

Recreational maths with 21310784100

• 21310784100 backwards is 00148701312
• 21310784100 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21310784100's digits is 27
• More coming soon!