21683938640

Names of 21683938640

• Cardinal: 21683938640 can be written as Twenty-one billion, six hundred eighty-three million, nine hundred thirty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.168393864 × 10¹⁰

Factors of 21683938640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 799

Divisors of 21683938640

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 20 26 28 35 40 49 52 56 65 70 80 89 91 98 104 112 130 140 178 182 196 208 245 260 280 343 356 364 392 445 455 490 520 560 623 637 683 686 712 728 784 890 910 980 1040 1157 1246 1274 1366 1372 1424 1456 1715 1780 1820 1960 2314 2492 2548 2732 2744 3115 3185 3415 3430 3560 3640 3920 4361 4459 4628 4781 4984 5096 5464 5488 5785 6230 6370 6830 6860 7120 7280 8099 8722 8879 8918 9256 9562 9968 10192 10928 11570 12460 12740 13660 13720 16198 17444 17758 17836 18512 19124 21805 22295 23140 23905 24920 25480 27320 27440 30527 32396 33467 34888 35516 35672 38248 40495 43610 44395 44590 46280 47810 49840 50960 54640 56693 60787 61054 62153 64792 66934 69776 71032 71344 76496 80990 87220 88790 89180 92560 95620 113386 121574 122108 124306 129584 133868 142064 152635 161980 167335 174440 177580 178360 191240 226772 234269 243148 244216 248612 267736 283465 303935 305270 310765 323960 334670 348880 355160 356720 382480 396851 425509 435071 453544 468538 486296 488432 497224 535472 566930 607870 610540 621530 647920 669340 710320 790231 793702 851018 870142 907088 937076 972592 994448 1133860 1171345 1215740 1221080 1243060 1338680 1580462 1587404 1702036 1740284 1874152 1984255 2127545 2175355 2267720 2342690 2431480 2442160 2486120 2677360 2978563 3045497 3160924 3174808 3404072 3480568 3748304 3951155 3968510 4255090 4350710 4535440 4685380 4862960 4972240 5531617 5957126 6090994 6321848 6349616 6808144 6961136 7902310 7937020 8510180 8701420 9370760 11063234 11914252 12181988 12643696 14892815 15227485 15804620 15874040 17020360 17402840 18741520 20849941 22126468 23828504 24363976 27658085 29785630 30454970 31609240 31748080 34040720 34805680 38721319 41699882 44252936 47657008 48727952 55316170 59571260 60909940 63218480 77442638 83399764 88505872 104249705 110632340 119142520 121819880 154885276 166799528 193606595 208499410 221264680 238285040 243639760 271049233 309770552 333599056 387213190 416998820 442529360 542098466 619541104 774426380 833997640 1084196932 1355246165 1548852760 1667995280 2168393864 2710492330 3097705520 4336787728 5420984660 10841969320 21683938640
• Sum of all divisors σ(n): 64120896000
• Sum of proper divisors (its aliquot sum) s(n): 42436957360
• 21683938640 is an abundant number, because the sum of its proper divisors (42436957360) is greater than itself. Its abundance is 20753018720

Bases of 21683938640

• Binary: 10100001100011101101010010101010000₂
• Hexadecimal: 0x50C76A550
• Base-36: 9YM224W

Squares and roots of 21683938640

• 21683938640 squared (21683938640²) is 470193194943285049600
• 21683938640 cubed (21683938640³) is 10195640388095751295555756544000
• The square root of 21683938640 is 147254.6727272177
• The cube root of 21683938640 is 2788.5561248117

Scales and comparisons

• 21,683,938,640 seconds is equal to 689 years, 25 weeks, 12 hours, 17 minutes, 20 seconds.
• To count from 1 to 21,683,938,640 would take you about one thousand, three hundred seventy-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 21683938640 cubic inches would be around 232.4 feet tall.

Recreational maths with 21683938640

• 21683938640 backwards is 04683938612
• The number of decimal digits it has is: 11
• The sum of 21683938640's digits is 50
• More coming soon!