21247412940
21,247,412,940 is an even composite number composed of six prime numbers multiplied together.
21247412940 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21247412940:
22 × 34 × 5 × 13 × 172 × 3491
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 13 × 17 × 17 × 3491)See below for interesting mathematical facts about the number 21247412940 from the Numbermatics database.
Names of 21247412940
- Cardinal: 21247412940 can be written as Twenty-one billion, two hundred forty-seven million, four hundred twelve thousand, nine hundred forty.
Scientific notation
- Scientific notation: 2.124741294 × 1010
Factors of 21247412940
Divisors of 21247412940
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 27 30 34 36 39 45 51 52 54 60 65 68 78 81 85 90 102 108 117 130 135 153 156 162 170 180 195 204 221 234 255 260 270 289 306 324 340 351 390 405 442 459 468 510 540 578 585 612 663 702 765 780 810 867 884 918 1020 1053 1105 1156 1170 1326 1377 1404 1445 1530 1620 1734 1755 1836 1989 2106 2210 2295 2340 2601 2652 2754 2890 3060 3315 3468 3491 3510 3757 3978 4212 4335 4420 4590 5202 5265 5508 5780 5967 6630 6885 6982 7020 7514 7803 7956 8670 9180 9945 10404 10473 10530 11271 11934 13005 13260 13770 13964 15028 15606 17340 17455 17901 18785 19890 20946 21060 22542 23409 23868 26010 27540 29835 31212 31419 33813 34910 35802 37570 39015 39780 41892 45084 45383 46818 52020 52365 56355 59347 59670 62838 67626 69820 71604 75140 78030 89505 90766 93636 94257 101439 104730 112710 117045 118694 119340 125676 135252 136149 156060 157095 169065 178041 179010 181532 188514 202878 209460 225420 226915 234090 237388 272298 282771 296735 304317 314190 338130 356082 358020 377028 405756 408447 453830 468180 471285 507195 534123 544596 565542 593470 608634 628380 676260 680745 712164 771511 816894 890205 907660 942570 1008899 1014390 1068246 1131084 1186940 1217268 1225341 1361490 1413855 1521585 1543022 1602369 1633788 1780410 1885140 2017798 2028780 2042235 2136492 2314533 2450682 2670615 2722980 2827710 3026697 3043170 3086044 3204738 3560820 3676023 3857555 4035596 4084470 4629066 4807107 4901364 5044495 5341230 5655420 6053394 6086340 6126705 6409476 6943599 7352046 7715110 8011845 8168940 9080091 9258132 9614214 10088990 10682460 11572665 12106788 12253410 13115687 13887198 14704092 15133485 15430220 16023690 18160182 18380115 19228428 20177980 20830797 23145330 24035535 24506820 26231374 27240273 27774396 30266970 32047380 34717995 36320364 36760230 39347061 41661594 45400455 46290660 48071070 52462748 54480546 60533940 62492391 65578435 69435990 73520460 78694122 81720819 83323188 90800910 96142140 104153985 108961092 118041183 124984782 131156870 136201365 138871980 157388244 163441638 181601820 196735305 208307970 236082366 249969564 262313740 272402730 312461955 326883276 354123549 393470610 408604095 416615940 472164732 544805460 590205915 624923910 708247098 786941220 817208190 1062370647 1180411830 1249847820 1416494196 1634416380 1770617745 2124741294 2360823660 3541235490 4249482588 5311853235 7082470980 10623706470 21247412940
- Sum of all divisors σ(n): 76273786512
- Sum of proper divisors (its aliquot sum) s(n): 55026373572
- 21247412940 is an abundant number, because the sum of its proper divisors (55026373572) is greater than itself. Its abundance is 33778960632
Bases of 21247412940
- Binary: 100111100100111000111001010110011002
- Hexadecimal: 0x4F271CACC
- Base-36: 9RE5SR0
Squares and roots of 21247412940
- 21247412940 squared (212474129402) is 451452556642879443600
- 21247412940 cubed (212474129403) is 9592198893809999648806640184000
-
The
square root of 21247412940 is 145764.9235584473 -
The
cube root of 21247412940 is 2769.7167204563
Scales and comparisons
How big is 21247412940?- 21,247,412,940 seconds is equal to 675 years, 31 weeks, 2 days, 3 hours, 9 minutes.
-
To count from 1 to 21,247,412,940 would take you about one thousand, three hundred fifty-one 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 21247412940 cubic inches would be around 230.8 feet tall.
Recreational maths with 21247412940
- 21247412940 backwards is 04921474212
- 21247412940 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21247412940's digits is 36
- More coming soon!
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