21193829280

Names of 21193829280

• Cardinal: 21193829280 can be written as Twenty-one billion, one hundred ninety-three million, eight hundred twenty-nine thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.119382928 × 10¹⁰

Factors of 21193829280

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 400

Divisors of 21193829280

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 20 24 26 27 30 32 34 36 39 40 45 48 51 52 54 60 65 68 72 78 79 80 85 90 96 102 104 108 117 120 130 135 136 144 153 156 158 160 170 180 195 204 208 216 221 234 237 240 255 260 270 272 281 288 306 312 316 340 351 360 390 395 408 416 432 442 459 468 474 480 510 520 540 544 562 585 612 624 632 663 680 702 711 720 765 780 790 816 843 864 884 918 936 948 1020 1027 1040 1080 1105 1124 1170 1185 1224 1248 1264 1326 1343 1360 1404 1405 1422 1440 1530 1560 1580 1632 1686 1755 1768 1836 1872 1896 1989 2040 2054 2080 2133 2160 2210 2248 2295 2340 2370 2448 2528 2529 2652 2686 2720 2808 2810 2844 3060 3081 3120 3160 3315 3372 3510 3536 3555 3653 3672 3744 3792 3978 4029 4080 4108 4215 4266 4320 4420 4496 4590 4680 4740 4777 4896 5058 5135 5304 5372 5616 5620 5688 5967 6120 6162 6240 6320 6630 6715 6744 7020 7072 7110 7306 7344 7584 7587 7956 8058 8160 8216 8430 8532 8840 8992 9180 9243 9360 9480 9554 9945 10116 10270 10608 10665 10744 10959 11232 11240 11376 11934 12087 12240 12324 12640 12645 13260 13430 13488 14040 14220 14331 14612 14688 15174 15405 15912 16116 16432 16860 17064 17459 17680 18265 18360 18486 18720 18960 19108 19890 20145 20232 20540 21216 21330 21488 21918 22199 22480 22752 23868 23885 24174 24480 24648 25290 26520 26860 26976 27729 28080 28440 28662 29224 29835 30348 30810 31824 32232 32864 32877 33720 34128 34918 35360 36261 36530 36720 36972 37920 37935 38216 39780 40290 40464 41080 42660 42976 42993 43836 44398 44960 46215 47736 47770 48348 49296 50580 52377 53040 53720 54795 55458 56160 56880 57324 58448 59670 60435 60696 61620 62101 63648 64464 65754 66597 67440 68256 69836 71655 72522 73060 73440 73944 75870 76432 79560 80580 80928 82160 85320 85986 87295 87672 88796 92430 95472 95540 96696 98592 98631 101160 104754 106080 107440 109590 110916 110995 113760 114648 116896 119340 120870 121392 123240 124202 128928 128979 131508 133194 134880 138645 139672 143310 145044 146120 147888 151740 152864 157131 159120 161160 164320 164385 170640 171972 174590 175344 177592 181305 184860 186303 190944 191080 193392 197262 199791 202320 209508 214880 214965 219180 221832 221990 229296 238680 241740 242784 246480 248404 257958 261885 263016 266388 277290 279344 286620 288587 290088 292240 295776 303480 310505 314262 318240 322320 328770 332985 341280 343944 349180 350688 355184 362610 369720 372606 377383 382160 386784 394524 399582 404640 419016 429930 438360 443664 443980 458592 471393 477360 483480 492960 493155 496808 515916 523770 526032 532776 554580 558688 558909 573240 577174 580176 584480 599373 606960 621010 628524 644640 644895 657540 665970 687888 698360 710368 725220 739440 745212 754766 764320 785655 789048 799164 838032 859860 865761 876720 887328 887960 931515 942786 954720 966960 986310 993616 998955 1031832 1047540 1052064 1065552 1109160 1117818 1132149 1146480 1154348 1160352 1198746 1213920 1242020 1257048 1289790 1315080 1331940 1375776 1396720 1442935 1450440 1478880 1490424 1509532 1571310 1578096 1598328 1676064 1676727 1719720 1731522 1753440 1775920 1863030 1885572 1886915 1933920 1972620 1987232 1997910 2063664 2095080 2131104 2218320 2235636 2264298 2292960 2308696 2356965 2397492 2484040 2514096 2579580 2597283 2630160 2663880 2793440 2794545 2885870 2900880 2980848 2996865 3019064 3142620 3156192 3196656 3353454 3396447 3439440 3463044 3551840 3726060 3771144 3773830 3945240 3995820 4127328 4190160 4328805 4436640 4471272 4528596 4617392 4713930 4794984 4905979 4968080 5028192 5159160 5194566 5260320 5327760 5589090 5660745 5771740 5801760 5961696 5993730 6038128 6285240 6393312 6706908 6792894 6878880 6926088 7452120 7542288 7547660 7791849 7890480 7991640 8380320 8383635 8657610 8942544 9057192 9234784 9427860 9589968 9811958 9936160 10189341 10318320 10389132 10655520 11178180 11321490 11543480 11987460 12076256 12570480 12986415 13413816 13585788 13852176 14717937 14904240 15084576 15095320 15583698 15780960 15983280 16767270 16982235 17315220 17885088 18114384 18855720 19179936 19623916 20378682 20636640 20778264 22356360 22642980 23086960 23974920 24529895 25140960 25972830 26827632 27171576 27704352 29435874 29808480 30190640 31167396 31966560 33534540 33964470 34630440 36228768 37711440 38959245 39247832 40757364 41556528 44153811 44712720 45285960 46173920 47949840 49059790 50946705 51945660 53655264 54343152 58871748 60381280 62334792 67069080 67928940 69260880 73589685 75422880 77918490 78495664 81514728 83113056 88307622 89425440 90571920 95899680 98119580 101893410 103891320 108686304 117743496 124669584 132461433 134138160 135857880 138521760 147179370 155836980 156991328 163029456 176615244 181143840 196239160 203786820 207782640 220769055 235486992 249339168 264922866 268276320 271715760 294358740 311673960 326058912 353230488 392478320 407573640 415565280 441538110 470973984 529845732 543431520 588717480 623347920 662307165 706460976 784956640 815147280 883076220 1059691464 1177434960 1246695840 1324614330 1412921952 1630294560 1766152440 2119382928 2354869920 2649228660 3532304880 4238765856 5298457320 7064609760 10596914640 21193829280
• Sum of all divisors σ(n): 85959014400
• Sum of proper divisors (its aliquot sum) s(n): 64765185120
• 21193829280 is an abundant number, because the sum of its proper divisors (64765185120) is greater than itself. Its abundance is 43571355840

Bases of 21193829280

• Binary: 10011101111010000000010101110100000₂
• Hexadecimal: 0x4EF402BA0
• Base-36: 9QI9BC0

Squares and roots of 21193829280

• 21193829280 squared (21193829280²) is 449178399549785318400
• 21193829280 cubed (21193829280³) is 9519810316321778898820042752000
• The square root of 21193829280 is 145581.0059039299
• The cube root of 21193829280 is 2767.3864525501

Scales and comparisons

• 21,193,829,280 seconds is equal to 673 years, 46 weeks, 4 days, 22 hours, 48 minutes.
• To count from 1 to 21,193,829,280 would take you about one thousand, three hundred forty-seven 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 21193829280 cubic inches would be around 230.6 feet tall.

Recreational maths with 21193829280

• 21193829280 backwards is 08292839112
• 21193829280 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21193829280's digits is 45
• More coming soon!