21394702368

Names of 21394702368

• Cardinal: 21394702368 can be written as Twenty-one billion, three hundred ninety-four million, seven hundred two thousand, three hundred sixty-eight.

Scientific notation

• Scientific notation: 2.1394702368 × 10¹⁰

Factors of 21394702368

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 35

Divisors of 21394702368

• Number of divisors d(n): 450
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 27 32 34 36 39 48 51 52 54 68 72 78 81 96 102 104 108 117 136 144 153 156 162 169 204 208 216 221 234 272 288 289 306 312 324 338 351 408 416 432 442 459 468 507 544 578 612 624 648 663 676 702 816 864 867 884 918 936 1014 1053 1156 1224 1248 1296 1326 1352 1377 1404 1521 1632 1734 1768 1836 1872 1989 2028 2106 2197 2312 2448 2592 2601 2652 2704 2754 2808 2873 3042 3468 3536 3672 3744 3757 3978 4056 4212 4394 4563 4624 4896 5202 5304 5408 5508 5616 5746 5967 6084 6591 6936 7072 7344 7514 7803 7956 8112 8424 8619 8788 9126 9248 10404 10608 11016 11232 11271 11492 11934 12168 13182 13689 13872 14688 15028 15606 15912 16224 16848 17238 17576 17901 18252 19773 20808 21216 22032 22542 22984 23409 23868 24336 25857 26364 27378 27744 28561 30056 31212 31824 33696 33813 34476 35152 35802 36504 37349 39546 41616 44064 45084 45968 46818 47736 48672 48841 51714 52728 54756 57122 59319 60112 62424 63648 67626 68952 70304 71604 73008 74698 77571 79092 83232 85683 90168 91936 93636 95472 97682 101439 103428 105456 109512 112047 114244 118638 120224 124848 135252 137904 143208 146016 146523 149396 155142 158184 171366 177957 180336 187272 190944 195364 202878 206856 210912 219024 224094 228488 232713 237276 249696 257049 270504 275808 286416 293046 298792 304317 310284 316368 336141 342732 355914 360672 374544 390728 405756 413712 438048 439569 448188 456976 465426 474552 485537 514098 541008 572832 586092 597584 608634 620568 632736 634933 672282 685464 711828 749088 771147 781456 811512 827424 879138 896376 913952 930852 949104 971074 1008423 1028196 1082016 1172184 1195168 1217268 1241136 1269866 1318707 1344564 1370928 1423656 1456611 1542294 1562912 1623024 1758276 1792752 1861704 1898208 1904799 1942148 2016846 2056392 2313441 2344368 2434536 2482272 2539732 2637414 2689128 2741856 2847312 2913222 3025269 3084588 3246048 3516552 3585504 3723408 3809598 3884296 3956121 4033692 4112784 4369833 4626882 4688736 4869072 5079464 5274828 5378256 5694624 5714397 5826444 6050538 6169176 7033104 7446816 7619196 7768592 7912242 8067384 8225568 8254129 8739666 9253764 9738144 10158928 10549656 10756512 11428794 11652888 12101076 12338352 13109499 14066208 15238392 15537184 15824484 16134768 16508258 17143191 17479332 18507528 20317856 21099312 22857588 23305776 24202152 24676704 24762387 26218998 30476784 31648968 32269536 33016516 34286382 34958664 37015056 39328497 42198624 45715176 46611552 48404304 49524774 51429573 52437996 60953568 63297936 66033032 68572764 69917328 74030112 74287161 78656994 91430352 96808608 99049548 102859146 104875992 126595872 132066064 137145528 139834656 148574322 157313988 182860704 198099096 205718292 209751984 222861483 264132128 274291056 297148644 314627976 396198192 411436584 419503968 445722966 548582112 594297288 629255952 668584449 792396384 822873168 891445932 1188594576 1258511904 1337168898 1645746336 1782891864 2377189152 2674337796 3565783728 5348675592 7131567456 10697351184 21394702368
• Sum of all divisors σ(n): 72410015601
• Sum of proper divisors (its aliquot sum) s(n): 51015313233
• 21394702368 is an abundant number, because the sum of its proper divisors (51015313233) is greater than itself. Its abundance is 29620610865

Bases of 21394702368

• Binary: 10011111011001110010100000000100000₂
• Hexadecimal: 0x4FB394020
• Base-36: 9TTUQ00

Squares and roots of 21394702368

• 21394702368 squared (21394702368²) is 457733289415304807424
• 21394702368 cubed (21394702368³) is 9793067490966051098836036780032
• The square root of 21394702368 is 146269.2803291245
• The cube root of 21394702368 is 2776.1019833695

Scales and comparisons

• 21,394,702,368 seconds is equal to 680 years, 14 weeks, 5 days, 20 hours, 52 minutes, 48 seconds.
• To count from 1 to 21,394,702,368 would take you about one thousand, three hundred sixty 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 21394702368 cubic inches would be around 231.3 feet tall.

Recreational maths with 21394702368

• 21394702368 backwards is 86320749312
• The number of decimal digits it has is: 11
• The sum of 21394702368's digits is 45
• More coming soon!