21538094240

Names of 21538094240

• Cardinal: 21538094240 can be written as Twenty-one billion, five hundred thirty-eight million, ninety-four thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.153809424 × 10¹⁰

Factors of 21538094240

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 504

Divisors of 21538094240

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 23 26 32 34 40 46 52 65 68 71 80 85 92 104 115 130 136 142 160 170 184 208 221 230 260 272 284 299 340 355 368 373 391 416 442 460 520 544 568 598 680 710 736 746 782 884 920 923 1040 1105 1136 1196 1207 1360 1420 1492 1495 1564 1633 1768 1840 1846 1865 1955 2080 2210 2272 2392 2414 2720 2840 2984 2990 3128 3266 3536 3680 3692 3730 3910 4420 4615 4784 4828 4849 5083 5680 5968 5980 6035 6256 6341 6532 7072 7384 7460 7820 8165 8579 8840 9230 9568 9656 9698 10166 11360 11936 11960 12070 12512 12682 13064 14768 14920 15640 15691 16330 17158 17680 18460 19312 19396 20332 21229 23920 24140 24245 25364 25415 26128 26483 27761 29536 29840 31280 31382 31705 32660 34316 35360 36920 38624 38792 40664 42458 42895 47840 48280 48490 50728 50830 52256 52966 55522 59680 62560 62764 63410 65320 68632 73840 77584 78455 81328 82433 84916 85790 96560 96980 101456 101660 105932 106145 111044 111527 125528 126820 130640 132415 137264 138805 145843 147680 155168 156910 162656 164866 169832 171580 193120 193960 202912 203320 211864 212290 222088 223054 251056 253640 261280 264830 274528 277610 291686 313820 329732 339664 343160 344279 360893 387920 406640 412165 423728 424580 444176 446108 450211 502112 507280 529660 555220 557635 583372 609109 627640 659464 679328 686320 688558 721786 729215 775840 813280 824330 847456 849160 888352 892216 900422 1014560 1059320 1110440 1115270 1166744 1218218 1255280 1318928 1372640 1377116 1443572 1458430 1648660 1698320 1721395 1784432 1800844 1804465 1895959 2118640 2220880 2230540 2251055 2333488 2436436 2510560 2637856 2754232 2887144 2916860 3045545 3297320 3396640 3442790 3568864 3601688 3608930 3791918 4237280 4441760 4461080 4502110 4666976 4872872 5508464 5774288 5833720 5852743 6091090 6594640 6885580 7203376 7217860 7583836 7918417 8922160 9004220 9479795 9745744 10354853 11016928 11548576 11667440 11705486 12182180 13189280 13771160 14406752 14435720 15167672 15836834 17844320 18008440 18959590 19491488 20709706 23334880 23410972 24364360 27542320 28871440 29263715 30335344 31673668 36016880 37919180 39592085 41419412 46821944 48728720 51774265 55084640 57742880 58527430 60670688 63347336 72033760 75838360 79184170 82838824 93643888 97457440 103548530 117054860 126694672 134613089 151676720 158368340 165677648 187287776 207097060 234109720 253389344 269226178 303353440 316736680 331355296 414194120 468219440 538452356 633473360 673065445 828388240 936438880 1076904712 1266946720 1346130890 1656776480 2153809424 2692261780 4307618848 5384523560 10769047120 21538094240
• Sum of all divisors σ(n): 61561285632
• Sum of proper divisors (its aliquot sum) s(n): 40023191392
• 21538094240 is an abundant number, because the sum of its proper divisors (40023191392) is greater than itself. Its abundance is 18485097152

Bases of 21538094240

• Binary: 10100000011110001010011110010100000₂
• Hexadecimal: 0x503C53CA0
• Base-36: 9W783VK

Squares and roots of 21538094240

• 21538094240 squared (21538094240²) is 463889503491121177600
• 21538094240 cubed (21538094240³) is 9991295843138576926408577024000
• The square root of 21538094240 is 146758.6257771583
• The cube root of 21538094240 is 2782.2901887835

Scales and comparisons

• 21,538,094,240 seconds is equal to 684 years, 43 weeks, 6 days, 11 hours, 57 minutes, 20 seconds.
• To count from 1 to 21,538,094,240 would take you about one thousand, three hundred sixty-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 21538094240 cubic inches would be around 231.9 feet tall.

Recreational maths with 21538094240

• 21538094240 backwards is 04249083512
• The number of decimal digits it has is: 11
• The sum of 21538094240's digits is 38
• More coming soon!