21513362640

Names of 21513362640

• Cardinal: 21513362640 can be written as Twenty-one billion, five hundred thirteen million, three hundred sixty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.151336264 × 10¹⁰

Factors of 21513362640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 123

Divisors of 21513362640

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 16 17 20 21 22 24 28 30 31 33 34 35 40 42 44 47 48 51 55 56 60 62 66 68 70 77 80 84 85 88 93 94 102 105 110 112 119 120 124 132 136 140 141 154 155 165 168 170 176 186 187 188 204 210 217 220 231 235 238 240 248 255 264 272 280 282 308 310 329 330 336 340 341 357 372 374 376 385 408 420 434 440 462 465 470 476 496 510 517 527 528 560 561 564 595 616 620 651 658 660 680 682 705 714 744 748 752 770 799 816 840 868 880 924 930 935 940 952 987 1020 1023 1034 1054 1085 1122 1128 1155 1190 1232 1240 1302 1309 1316 1320 1360 1364 1410 1428 1457 1488 1496 1540 1551 1581 1598 1645 1680 1705 1736 1785 1848 1860 1870 1880 1904 1974 2040 2046 2068 2108 2170 2209 2244 2256 2310 2380 2387 2397 2480 2585 2604 2618 2632 2635 2640 2728 2805 2820 2856 2914 2992 3080 3102 3162 3196 3255 3290 3410 3472 3570 3619 3689 3696 3720 3740 3760 3927 3948 3995 4080 4092 4136 4216 4340 4371 4418 4488 4620 4760 4774 4794 4935 5115 5170 5208 5236 5264 5270 5456 5593 5610 5640 5712 5797 5828 6160 6204 6324 6392 6510 6545 6580 6627 6820 7140 7161 7238 7285 7378 7440 7480 7755 7854 7896 7905 7990 8184 8272 8432 8680 8742 8789 8836 8976 9240 9520 9548 9588 9870 10199 10230 10340 10416 10472 10540 10857 11045 11067 11186 11220 11280 11594 11656 11935 11985 12408 12648 12784 13020 13090 13160 13254 13640 14280 14322 14476 14570 14756 14960 15463 15510 15708 15792 15810 15980 16027 16368 16779 17360 17391 17484 17578 17672 18095 18445 18480 19096 19176 19635 19740 20398 20460 20680 20944 21080 21714 21855 22090 22134 22372 22440 23188 23312 23870 23970 24299 24769 24816 25296 26040 26180 26320 26367 26508 27280 27965 28560 28644 28952 28985 29140 29512 30597 30926 31020 31416 31620 31960 32054 33135 33558 34782 34968 35156 35344 35805 36190 36890 37553 38192 38352 39270 39480 40579 40796 40920 41360 42160 43428 43710 43945 44180 44268 44744 44880 46376 46389 47740 47940 48081 48598 49538 50995 52080 52360 52734 53016 54285 55335 55930 57288 57904 57970 58280 59024 61194 61523 61852 62040 62832 63240 63920 64108 66270 67116 68479 69564 69936 70312 71610 72380 72897 73780 74307 75106 77315 78540 78960 80135 81158 81592 81840 83895 86856 86955 87420 87890 88360 88536 89488 92752 92778 95480 95880 96162 97196 99076 101990 104720 105468 106032 108570 110670 111860 112189 112659 114576 115940 116560 121495 121737 122388 123046 123704 123845 124080 126480 128216 131835 132540 134232 136958 139128 140624 143220 144760 145794 147560 148614 150212 152985 154630 157080 160270 162316 163184 167790 170093 173383 173712 173910 174840 175780 176720 177072 184569 185556 187765 190960 191760 192324 194392 198152 202895 203980 205437 210936 217140 221340 223720 224378 225318 231880 231945 240405 242990 243474 244776 246092 247408 247690 256432 262871 263670 265080 268464 272459 273916 278256 286440 289520 291588 295120 297228 300424 305970 307615 309260 314160 320540 324632 335580 336567 340186 342395 346766 347820 349680 351560 364485 369138 371112 371535 375530 384648 388784 396304 405790 407960 410874 413083 421872 434280 442680 447440 448756 450636 463760 463890 479353 480810 485980 486948 489552 492184 495380 510279 520149 525742 527340 530160 544918 547832 560945 563295 572880 583176 594456 600848 608685 611940 615230 618520 641080 649264 671160 673134 680372 684790 693532 695640 703120 728970 738276 742224 743070 751060 753269 769296 788613 811580 815920 817377 821748 826166 850465 866915 868560 885360 897512 901272 922845 927780 958706 961620 971960 973896 984368 990760 1020558 1027185 1040298 1051484 1054680 1089836 1095664 1121890 1126590 1164143 1166352 1188912 1217370 1223880 1230460 1237040 1239249 1282160 1314355 1342320 1346268 1360744 1362295 1369580 1387064 1391280 1438059 1457940 1476552 1486140 1502120 1506538 1577226 1623160 1634754 1643496 1652332 1682835 1700930 1733830 1795024 1802544 1845690 1855560 1907213 1917412 1923240 1943920 1947792 1981520 2041116 2054370 2065415 2080596 2102968 2109360 2179672 2243780 2253180 2259807 2328286 2396765 2434740 2447760 2460920 2478498 2551395 2600745 2628710 2692536 2721488 2724590 2739160 2774128 2876118 2891581 2915880 2953104 2972280 3004240 3013076 3154452 3246320 3269508 3286992 3304664 3365670 3401860 3467660 3492429 3691380 3711120 3766345 3814426 3834824 3846480 3943065 4082232 4086885 4108740 4130830 4161192 4205936 4359344 4487560 4506360 4519614 4656572 4793530 4869480 4921840 4956996 5102790 5201490 5257420 5272883 5385072 5449180 5478320 5721639 5752236 5783162 5820715 5831760 5944560 6026152 6196245 6308904 6539016 6609328 6731340 6803720 6935320 6984858 7190295 7382760 7532690 7628852 7669648 7886130 8149001 8164464 8173770 8217480 8261660 8322384 8674743 8975120 9012720 9039228 9313144 9536065 9587060 9738960 9913992 10205580 10402980 10514840 10545766 10898360 11299035 11443278 11504472 11566324 11641430 12052304 12392490 12617808 12805573 13078032 13462680 13607440 13870640 13969716 14380590 14457905 14765520 15065380 15257704 15772260 15818649 16298002 16347540 16434960 16523320 17349486 17462145 18078456 18626288 19072130 19174120 19827984 20411160 20805960 21029680 21091532 21796720 22598070 22886556 23008944 23132648 23282860 24447003 24784980 25611146 26364415 26925360 27939432 28608195 28761180 28915810 30130760 30515408 31544520 31637298 32596004 32695080 33046640 34698972 34924290 36156912 38144260 38348240 38416719 40745005 40822320 41611920 42183064 43373715 45196140 45773112 46265296 46565720 48894006 49569960 51222292 52728830 55878864 57216390 57522360 57831620 60261520 63089040 63274596 64027865 65192008 65390160 69397944 69848580 76288520 76833438 79093245 81490010 84366128 86747430 89639011 90392280 91546224 93131440 97788012 99139920 102444584 105457660 114432780 115044720 115663240 122235015 126549192 128055730 130384016 138795888 139697160 152577040 153666876 158186490 162980020 173494860 179278022 180784560 192083595 195576024 204889168 210915320 228865560 231326480 244470030 253098384 256111460 268917033 279394320 307333752 316372980 325960040 346989720 358556044 384167190 391152048 421830640 448195055 457731120 488940060 512222920 537834066 614667504 632745960 651920080 693979440 717112088 768334380 896390110 977880120 1024445840 1075668132 1265491920 1344585165 1434224176 1536668760 1792780220 1955760240 2151336264 2689170330 3073337520 3585560440 4302672528 5378340660 7171120880 10756681320 21513362640
• Sum of all divisors σ(n): 92853485568
• Sum of proper divisors (its aliquot sum) s(n): 71340122928
• 21513362640 is an abundant number, because the sum of its proper divisors (71340122928) is greater than itself. Its abundance is 49826760288

Bases of 21513362640

• Binary: 10100000010010010111101110011010000₂
• Hexadecimal: 0x5024BDCD0
• Base-36: 9VSI0UO

Squares and roots of 21513362640

• 21513362640 squared (21513362640²) is 462824772080147769600
• 21513362640 cubed (21513362640³) is 9956917160535566112191967744000
• The square root of 21513362640 is 146674.3421324943
• The cube root of 21513362640 is 2781.2248385285

Scales and comparisons

• 21,513,362,640 seconds is equal to 684 years, 3 weeks, 6 hours, 4 minutes.
• To count from 1 to 21,513,362,640 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 21513362640 cubic inches would be around 231.8 feet tall.

Recreational maths with 21513362640

• 21513362640 backwards is 04626331512
• 21513362640 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21513362640's digits is 33
• More coming soon!