21947299920

Names of 21947299920

• Cardinal: 21947299920 can be written as Twenty-one billion, nine hundred forty-seven million, two hundred ninety-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.194729992 × 10¹⁰

Factors of 21947299920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 439

Divisors of 21947299920

• Number of divisors d(n): 900
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 18 20 21 24 26 27 28 30 35 36 39 40 42 45 48 49 52 54 56 60 63 65 70 72 78 80 81 84 90 91 98 104 105 108 112 117 120 126 130 135 140 144 147 156 162 168 169 180 182 189 195 196 208 210 216 234 240 245 252 260 270 273 280 294 312 315 324 336 338 351 360 364 378 390 392 405 409 420 432 441 455 468 490 504 507 520 540 546 560 567 585 588 624 630 637 648 676 702 720 728 735 756 780 784 810 818 819 840 845 882 910 936 945 980 1008 1014 1040 1053 1080 1092 1134 1170 1176 1183 1227 1260 1274 1296 1323 1352 1365 1404 1456 1470 1512 1521 1560 1620 1636 1638 1680 1690 1755 1764 1820 1872 1890 1911 1960 2028 2045 2106 2160 2184 2205 2268 2340 2352 2366 2454 2457 2520 2535 2548 2646 2704 2730 2808 2835 2863 2940 3024 3042 3120 3185 3240 3272 3276 3380 3510 3528 3549 3640 3681 3780 3822 3920 3969 4056 4090 4095 4212 4368 4410 4536 4563 4680 4732 4908 4914 5040 5070 5096 5265 5292 5317 5460 5616 5670 5726 5733 5880 5915 6084 6135 6370 6480 6544 6552 6615 6760 7020 7056 7098 7280 7362 7371 7560 7605 7644 7938 8112 8180 8190 8281 8424 8589 8820 9072 9126 9360 9464 9555 9816 9828 10140 10192 10530 10584 10634 10647 10920 11043 11340 11452 11466 11760 11830 12168 12270 12285 12740 13104 13230 13520 13689 14040 14196 14315 14724 14742 15120 15210 15288 15876 15951 16360 16380 16562 16848 17178 17199 17640 17745 18252 18405 18928 19110 19632 19656 19845 20041 20280 21060 21168 21268 21294 21840 22086 22680 22815 22904 22932 23660 24336 24540 24570 24843 25480 25767 26460 26585 27378 28080 28392 28630 28665 29448 29484 30420 30576 31752 31902 31941 32720 32760 33124 33129 34356 34398 35280 35490 36504 36810 36855 37219 38220 39312 39690 40082 40560 41405 42120 42536 42588 42945 44172 45360 45630 45808 45864 47320 47853 49080 49140 49686 50960 51534 51597 52920 53170 53235 54756 55215 56784 57260 57330 58896 58968 60123 60840 63504 63804 63882 65520 66248 66258 68445 68712 68796 69121 70980 73008 73620 73710 74438 74529 76440 77301 79380 79755 80164 82810 84240 85072 85176 85890 85995 88344 91260 91728 94640 95706 95823 98160 98280 99372 100205 103068 103194 105840 106340 106470 109512 110430 111657 114520 114660 117936 120246 121680 124215 127608 127764 128835 132496 132516 136890 137424 137592 138242 141960 143559 147240 147420 148876 149058 152880 154602 158760 159510 159705 160328 165620 165645 170352 171780 171990 176688 180369 182520 186095 191412 191646 196560 198744 200410 206136 206388 207363 212680 212940 219024 220860 223314 223587 229040 229320 231903 239265 240492 248430 255216 255528 257670 257985 260533 265032 273780 275184 276484 283920 287118 294480 294840 297752 298116 300615 309204 317520 319020 319410 320656 331240 331290 334971 343560 343980 345605 360738 365040 372190 372645 382824 383292 386505 397488 400820 412272 412776 414726 425360 425880 430677 441720 446628 447174 458640 463806 478530 479115 480984 483847 496860 511056 515340 515970 521066 530064 541107 547560 552968 558285 574236 589680 595504 596232 601230 618408 622089 638040 638820 662480 662580 669942 670761 687120 687960 691210 717795 721476 744380 745290 765648 766584 773010 781599 801640 825552 829452 851760 861354 883440 893256 894348 901845 927612 957060 958230 961968 967694 993720 1004913 1030680 1031940 1036815 1042132 1082214 1095120 1105936 1116570 1117935 1148472 1159515 1192464 1202460 1236816 1244178 1276080 1277640 1302665 1325160 1339884 1341522 1375920 1382420 1435590 1442952 1451541 1488760 1490580 1533168 1546020 1563198 1603280 1623321 1658904 1674855 1722708 1786512 1788696 1803690 1855224 1866267 1914120 1916460 1935388 1987440 2009826 2061360 2063880 2073630 2084264 2153385 2164428 2233140 2235870 2296944 2319030 2344797 2404920 2419235 2488356 2555280 2605330 2650320 2679768 2683044 2705535 2764840 2871180 2885904 2903082 2977520 2981160 3014739 3092040 3110445 3126396 3246642 3317808 3349710 3353805 3386929 3445416 3577392 3607380 3710448 3732534 3828240 3832920 3870776 3907995 4019652 4127760 4147260 4168528 4306770 4328856 4354623 4466280 4471740 4638060 4689594 4809840 4838470 4976712 5024565 5210660 5359536 5366088 5411070 5529680 5598801 5742360 5806164 5962320 6029478 6184080 6220890 6252792 6493284 6699420 6707610 6773858 6890832 7034391 7214760 7257705 7465068 7665840 7741552 7815990 8039304 8116605 8294520 8613540 8657712 8709246 8932560 8943480 9276120 9331335 9379188 9676940 9953424 10049130 10160787 10421320 10732176 10822140 11197602 11484720 11612328 11723985 12058956 12441780 12505584 12986568 13063869 13398840 13415220 13547716 14068782 14429520 14515410 14930136 15073695 15631980 16078608 16233210 16589040 16934645 17227080 17418492 17886960 18552240 18662670 18758376 19353880 20098260 20321574 20842640 21103173 21644280 21773115 22395204 23224656 23447970 24117912 24883560 25973136 26127738 26797680 26830440 27095432 27994005 28137564 29030820 29860272 30147390 30482361 31263960 32466420 33869290 34454160 34836984 35171955 37325340 37516752 38707760 39191607 40196520 40643148 42206346 43288560 43546230 44790408 46895940 48235824 49767120 50803935 52255476 53660880 54190864 55988010 56275128 58061640 60294780 60964722 62527920 64932840 65319345 67738580 69673968 70343910 74650680 78383214 80393040 81286296 84412692 87092460 89580816 91447083 93791880 101607870 104510952 105515865 111976020 112550256 116123280 120589560 121929444 129865680 130638690 135477160 140687820 149301360 152411805 156766428 162572592 168825384 174184920 182894166 187583760 195958035 203215740 209021904 211031730 223952040 241179120 243858888 261277380 270954320 274341249 281375640 304823610 313532856 337650768 348369840 365788332 391916070 406431480 422063460 447904080 457235415 487717776 522554760 548682498 562751280 609647220 627065712 731576664 783832140 812862960 844126920 914470830 1045109520 1097364996 1219294440 1371706245 1463153328 1567664280 1688253840 1828941660 2194729992 2438588880 2743412490 3135328560 3657883320 4389459984 5486824980 7315766640 10973649960 21947299920
• Sum of all divisors σ(n): 96251635260
• Sum of proper divisors (its aliquot sum) s(n): 74304335340
• 21947299920 is an abundant number, because the sum of its proper divisors (74304335340) is greater than itself. Its abundance is 52357035420

Bases of 21947299920

• Binary: 10100011100001010010011100001010000₂
• Hexadecimal: 0x51C293850
• Base-36: A2YUT00

Squares and roots of 21947299920

• 21947299920 squared (21947299920²) is 481683973778432006400
• 21947299920 cubed (21947299920³) is 10571662639172662871788159488000
• The square root of 21947299920 is 148146.2112914131
• The cube root of 21947299920 is 2799.8001524031

Scales and comparisons

• 21,947,299,920 seconds is equal to 697 years, 44 weeks, 3 days, 16 hours, 12 minutes.
• To count from 1 to 21,947,299,920 would take you about one thousand, three hundred ninety-five 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 21947299920 cubic inches would be around 233.3 feet tall.

Recreational maths with 21947299920

• 21947299920 backwards is 02999274912
• 21947299920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21947299920's digits is 54
• More coming soon!