21523923720

Names of 21523923720

• Cardinal: 21523923720 can be written as Twenty-one billion, five hundred twenty-three million, nine hundred twenty-three thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.152392372 × 10¹⁰

Factors of 21523923720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2980

Divisors of 21523923720

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 17 18 20 24 26 27 30 31 34 36 39 40 45 51 52 54 60 62 65 68 72 78 85 90 93 102 104 108 117 120 124 130 135 136 153 155 156 170 180 186 195 204 216 221 234 248 255 260 270 279 306 310 312 340 351 360 372 390 403 408 442 459 465 468 510 520 527 540 558 585 612 620 663 680 702 744 765 780 806 837 884 918 930 936 1020 1054 1080 1105 1116 1170 1209 1224 1240 1326 1395 1404 1530 1560 1581 1612 1674 1755 1768 1836 1860 1989 2015 2040 2108 2210 2232 2295 2340 2418 2635 2652 2790 2808 2909 3060 3162 3224 3315 3348 3510 3627 3672 3720 3978 4030 4185 4216 4420 4590 4680 4743 4836 5270 5304 5580 5818 5967 6045 6120 6324 6630 6696 6851 7020 7254 7905 7956 8060 8370 8727 8840 9180 9486 9672 9945 10540 10881 11160 11636 11934 12090 12648 13260 13702 14040 14229 14508 14545 15810 15912 16120 16740 17454 18135 18360 18972 19890 20553 21080 21762 23272 23715 23868 24180 26181 26520 27404 28458 29016 29090 29835 31620 33480 34255 34908 36270 37817 37944 39780 41106 43524 43635 47430 47736 48360 49453 52362 54405 54808 56916 58180 59670 61659 63240 68510 69816 71145 72540 75634 78543 79560 82212 87048 87270 90179 94860 98906 102765 104724 108810 113451 113832 116360 119340 123318 130905 137020 142290 145080 148359 151268 157086 164424 174540 180358 184977 189085 189720 197812 205530 209448 217620 226902 238680 246636 247265 261810 270537 274040 284580 296718 302536 308295 314172 340353 349080 360716 369954 378170 392715 395624 411060 435240 445077 450895 453804 493272 494530 523620 541074 567255 569160 593436 616590 628344 642889 680706 721432 739908 741795 756340 785430 811611 822120 890154 901790 907608 924885 989060 1021059 1047240 1082148 1134510 1172327 1186872 1233180 1285778 1335231 1352685 1361412 1479816 1483590 1512680 1533043 1570860 1623222 1701765 1780308 1803580 1849770 1928667 1978120 2042118 2164296 2225385 2269020 2344654 2434833 2466360 2571556 2670462 2705370 2722824 2967180 3066086 3141720 3214445 3246444 3403530 3516981 3560616 3607160 3699540 3857334 4058055 4084236 4450770 4538040 4599129 4689308 4869666 5105295 5143112 5340924 5410740 5786001 5861635 5934360 6132172 6428890 6492888 6676155 6807060 7033962 7399080 7665215 7714668 8116110 8168472 8901540 9198258 9378616 9643335 9739332 10210590 10550943 10681848 10821480 11572002 11723270 12174165 12264344 12857780 13352310 13614120 13797387 14067924 15330430 15429336 16232220 17358003 17584905 17803080 18396516 19286670 19478664 19929559 20421180 21101886 22995645 23144004 23446540 24348330 25715560 26704620 27594774 28135848 28930005 30660860 31652829 32464440 34716006 35169810 36793032 38573340 39859118 40842360 41392161 42203772 45991290 46288008 46893080 48696660 52754715 53409240 55189548 57860010 59788677 61321720 63305658 68986935 69432012 70339620 77146680 79718236 82784322 84407544 86790015 91982580 97393320 99647795 105509430 110379096 115720020 119577354 126611316 137973870 138864024 140679240 158264145 159436472 165568644 173580030 179366031 183965160 199295590 206960805 211018860 231440040 239154708 253222632 275947740 298943385 316528290 331137288 347160060 358732062 398591180 413921610 422037720 478309416 538098093 551895480 597886770 633056580 694320120 717464124 797182360 827843220 896830155 1076196186 1195773540 1266113160 1434928248 1655686440 1793660310 2152392372 2391547080 2690490465 3587320620 4304784744 5380980930 7174641240 10761961860 21523923720
• Sum of all divisors σ(n): 84478464000
• Sum of proper divisors (its aliquot sum) s(n): 62954540280
• 21523923720 is an abundant number, because the sum of its proper divisors (62954540280) is greater than itself. Its abundance is 41430616560

Bases of 21523923720

• Binary: 10100000010111011010000001100001000₂
• Hexadecimal: 0x502ED0308
• Base-36: 9VYSDU0

Squares and roots of 21523923720

• 21523923720 squared (21523923720²) is 463279292304378638400
• 21523923720 cubed (21523923720³) is 9971588148615028834919062848000
• The square root of 21523923720 is 146710.3395129327
• The cube root of 21523923720 is 2781.6798725053

Scales and comparisons

• 21,523,923,720 seconds is equal to 684 years, 20 weeks, 3 days, 11 hours, 42 minutes.
• To count from 1 to 21,523,923,720 would take you about one thousand, three hundred sixty-eight 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 21523923720 cubic inches would be around 231.8 feet tall.

Recreational maths with 21523923720

• 21523923720 backwards is 02732932512
• 21523923720 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21523923720's digits is 36
• More coming soon!