21056844240

Names of 21056844240

• Cardinal: 21056844240 can be written as Twenty-one billion, fifty-six million, eight hundred forty-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.105684424 × 10¹⁰

Factors of 21056844240

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 673

Divisors of 21056844240

• Number of divisors d(n): 560
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 31 36 38 40 45 48 54 57 60 62 72 76 80 81 90 93 95 108 114 120 124 135 144 152 155 162 171 180 186 190 216 228 240 243 248 270 279 285 304 310 324 342 360 372 380 405 432 456 465 486 496 513 540 558 570 589 613 620 648 684 720 729 744 760 810 837 855 912 930 972 1026 1080 1116 1140 1178 1215 1226 1240 1296 1368 1395 1458 1488 1520 1539 1620 1674 1710 1767 1839 1860 1944 2052 2160 2232 2280 2356 2430 2452 2480 2511 2565 2736 2790 2916 2945 3065 3078 3240 3348 3420 3534 3645 3678 3720 3888 4104 4185 4464 4560 4617 4712 4860 4904 5022 5130 5301 5517 5580 5832 5890 6130 6156 6480 6696 6840 7068 7290 7356 7440 7533 7695 8208 8370 8835 9195 9234 9424 9720 9808 10044 10260 10602 11034 11160 11647 11664 11780 12260 12312 12555 13392 13680 13851 14136 14580 14712 15066 15390 15903 16551 16740 17670 18390 18468 19003 19440 20088 20520 21204 22068 22320 22599 23085 23294 23560 24520 24624 25110 26505 27585 27702 28272 29160 29424 30132 30780 31806 33102 33480 34941 35340 36780 36936 37665 38006 40176 41040 42408 44136 45198 46170 46588 47120 47709 49040 49653 50220 53010 55170 55404 57009 58235 58320 60264 61560 63612 66204 66960 69255 69882 70680 73560 73872 75330 76012 79515 82755 84816 88272 90396 92340 93176 95015 95418 99306 100440 104823 106020 110340 110808 112995 114018 116470 120528 123120 127224 132408 138510 139764 141360 143127 147120 148959 150660 152024 159030 165510 171027 174705 180792 184680 186352 190030 190836 198612 200880 209646 212040 220680 221616 225990 228036 232940 238545 248265 254448 264816 277020 279528 285045 286254 297918 301320 304048 314469 318060 331020 342054 349410 361057 361584 369360 380060 381672 397224 419292 424080 429381 441360 446877 451980 456072 465880 477090 496530 513081 524115 554040 559056 570090 572508 595836 602640 628938 636120 662040 684108 698820 715635 722114 744795 760120 763344 794448 838584 855135 858762 893754 903960 912144 931760 943407 954180 993060 1026162 1048230 1083171 1108080 1140180 1145016 1191672 1257876 1272240 1324080 1368216 1397640 1431270 1444228 1489590 1520240 1539243 1572345 1677168 1710270 1717524 1787508 1805285 1807920 1886814 1908360 1986120 2052324 2096460 2146905 2166342 2234385 2280360 2290032 2383344 2515752 2565405 2736432 2795280 2830221 2862540 2888456 2979180 3078486 3144690 3249513 3420540 3435048 3575016 3610570 3773628 3816720 3972240 4104648 4192920 4293810 4332684 4468770 4560720 4617729 4717035 5031504 5130810 5415855 5660442 5725080 5776912 5958360 6156972 6289380 6499026 6841080 6870096 7150032 7221140 7547256 7696215 8209296 8385840 8490663 8587620 8665368 8937540 9235458 9434070 9748539 10261620 10831710 11320884 11450160 11916720 12313944 12578760 12998052 13682160 13853187 14151105 14442280 15094512 15392430 16247565 16981326 17175240 17330736 17875080 18470916 18868140 19497078 20523240 21663420 22641768 23088645 24627888 25157520 25996104 27706374 28302210 28884560 29245617 30784860 32495130 33962652 34350480 35750160 36941832 37736280 38994156 41046480 42453315 43326840 45283536 46177290 48742695 51992208 55412748 56604420 58491234 61569720 64990260 67925304 69265935 73883664 75472560 77988312 84906630 86653680 87736851 92354580 97485390 110825496 113208840 116982468 123139440 129980520 135850608 138531870 146228085 155976624 169813260 175473702 184709160 194970780 221650992 226417680 233964936 259961040 263210553 277063740 292456170 339626520 350947404 369418320 389941560 438684255 467929872 526421106 554127480 584912340 679253040 701894808 779883120 877368510 1052842212 1108254960 1169824680 1316052765 1403789616 1754737020 2105684424 2339649360 2632105530 3509474040 4211368848 5264211060 7018948080 10528422120 21056844240
• Sum of all divisors σ(n): 79887982080
• Sum of proper divisors (its aliquot sum) s(n): 58831137840
• 21056844240 is an abundant number, because the sum of its proper divisors (58831137840) is greater than itself. Its abundance is 37774293600

Bases of 21056844240

• Binary: 10011100111000101011111000111010000₂
• Hexadecimal: 0x4E715F1D0
• Base-36: 9O8P900

Squares and roots of 21056844240

• 21056844240 squared (21056844240²) is 443390689347621177600
• 21056844240 cubed (21056844240³) is 9336408683059086351248577024000
• The square root of 21056844240 is 145109.7661771943
• The cube root of 21056844240 is 2761.4112820211

Scales and comparisons

• 21,056,844,240 seconds is equal to 669 years, 28 weeks, 1 day, 11 hours, 24 minutes.
• To count from 1 to 21,056,844,240 would take you about one thousand, three hundred thirty-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 21056844240 cubic inches would be around 230.1 feet tall.

Recreational maths with 21056844240

• 21056844240 backwards is 04244865012
• 21056844240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21056844240's digits is 36
• More coming soon!