21383656560

Names of 21383656560

• Cardinal: 21383656560 can be written as Twenty-one billion, three hundred eighty-three million, six hundred fifty-six thousand, five hundred sixty.

Scientific notation

• Scientific notation: 2.138365656 × 10¹⁰

Factors of 21383656560

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2607

Divisors of 21383656560

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 81 84 90 105 108 112 120 126 135 140 144 162 168 180 189 197 210 216 240 252 270 280 315 324 336 360 378 394 405 420 432 504 540 560 567 591 630 648 720 756 788 810 840 945 985 1008 1080 1134 1182 1260 1296 1379 1512 1576 1620 1680 1773 1890 1970 2160 2268 2364 2393 2520 2758 2835 2955 3024 3152 3240 3546 3780 3940 4137 4536 4728 4786 5040 5319 5516 5670 5910 6480 6895 7092 7179 7560 7880 8274 8865 9072 9456 9572 10638 11032 11340 11820 11965 12411 13790 14184 14358 15120 15760 15957 16548 16751 17730 19144 20685 21276 21537 22064 22680 23640 23930 24822 26595 27580 28368 28716 31914 33096 33502 35460 35895 37233 38288 41370 42552 43074 45360 47280 47860 49644 50253 53190 55160 57432 62055 63828 64611 66192 67004 70920 71790 74466 79785 82740 83755 85104 86148 95720 99288 100506 106380 107685 110320 111699 114864 124110 127656 129222 134008 141840 143580 148932 150759 159570 165480 167510 172296 186165 191440 193833 198576 201012 212760 215370 223398 248220 251265 255312 258444 268016 287160 297864 301518 319140 323055 330960 335020 344592 372330 387666 402024 425520 430740 446796 452277 471421 496440 502530 516888 558495 574320 595728 603036 638280 646110 670040 744660 753795 775332 804048 861480 893592 904554 942842 969165 992880 1005060 1033776 1116990 1206072 1276560 1292220 1340080 1356831 1414263 1489320 1507590 1550664 1722960 1787184 1809108 1885684 1938330 2010120 2233980 2261385 2357105 2412144 2584440 2713662 2828526 2978640 3015180 3101328 3299947 3618216 3771368 3876660 4020240 4242789 4467960 4522770 4714210 5168880 5427324 5657052 6030360 6599894 6784155 7071315 7236432 7542736 7753320 8485578 8935920 9045540 9428420 9899841 10854648 11314104 12060720 12728367 13199788 13568310 14142630 15506640 16499735 16971156 18091080 18856840 19799682 21213945 21709296 22628208 25456734 26399576 27136620 28285260 29699523 32999470 33942312 36182160 37713680 38185101 39599364 42427890 49499205 50913468 52799152 54273240 56570520 59399046 63641835 65998940 67884624 76370202 79198728 84855780 89098569 98998410 101826936 108546480 113141040 118798092 127283670 131997880 148497615 152740404 158397456 169711560 178197138 190925505 197996820 203653872 237596184 254567340 263995760 267295707 296995230 305480808 339423120 356394276 381851010 395993640 445492845 475192368 509134680 534591414 593990460 610961616 712788552 763702020 791987280 890985690 1018269360 1069182828 1187980920 1336478535 1425577104 1527404040 1781971380 2138365656 2375961840 2672957070 3054808080 3563942760 4276731312 5345914140 7127885520 10691828280 21383656560
• Sum of all divisors σ(n): 85344912576
• Sum of proper divisors (its aliquot sum) s(n): 63961256016
• 21383656560 is an abundant number, because the sum of its proper divisors (63961256016) is greater than itself. Its abundance is 42577599456

Bases of 21383656560

• Binary: 10011111010100100001011010001110000₂
• Hexadecimal: 0x4FA90B470
• Base-36: 9TN9Z00

Squares and roots of 21383656560

• 21383656560 squared (21383656560²) is 457260767876031033600
• 21383656560 cubed (21383656560³) is 9777907218622928278404220416000
• The square root of 21383656560 is 146231.5169859085
• The cube root of 21383656560 is 2775.6241459485

Scales and comparisons

• 21,383,656,560 seconds is equal to 679 years, 48 weeks, 4 days, 36 minutes.
• To count from 1 to 21,383,656,560 would take you about one thousand, three hundred fifty-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 21383656560 cubic inches would be around 231.3 feet tall.

Recreational maths with 21383656560

• 21383656560 backwards is 06565638312
• 21383656560 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21383656560's digits is 45
• More coming soon!