21356365940
21,356,365,940 is an even composite number composed of seven prime numbers multiplied together.
21356365940 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21356365940:
22 × 5 × 7 × 13 × 172 × 19 × 2137
(2 × 2 × 5 × 7 × 13 × 17 × 17 × 19 × 2137)See below for interesting mathematical facts about the number 21356365940 from the Numbermatics database.
Names of 21356365940
- Cardinal: 21356365940 can be written as Twenty-one billion, three hundred fifty-six million, three hundred sixty-five thousand, nine hundred forty.
Scientific notation
- Scientific notation: 2.135636594 × 1010
Factors of 21356365940
Divisors of 21356365940
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 10 13 14 17 19 20 26 28 34 35 38 52 65 68 70 76 85 91 95 119 130 133 140 170 182 190 221 238 247 260 266 289 323 340 364 380 442 455 476 494 532 578 595 646 665 884 910 988 1105 1156 1190 1235 1292 1330 1445 1547 1615 1729 1820 2023 2137 2210 2261 2380 2470 2660 2890 3094 3230 3458 3757 4046 4199 4274 4420 4522 4940 5491 5780 6188 6460 6916 7514 7735 8092 8398 8548 8645 9044 10115 10685 10982 11305 14959 15028 15470 16796 17290 18785 20230 20995 21370 21964 22610 26299 27455 27781 29393 29918 30940 34580 36329 37570 38437 40460 40603 41990 42740 45220 52598 54910 55562 58786 59836 71383 72658 74795 75140 76874 81206 83980 105196 109820 111124 117572 131495 138905 142766 145316 146965 149590 153748 162412 181645 192185 194467 203015 254303 262990 277810 284221 285532 293930 299180 356915 363290 384370 388934 406030 472277 499681 508606 525980 527839 555620 568442 587860 617593 690251 713830 726580 768740 777868 812060 944554 972335 999362 1017212 1055678 1136884 1235186 1271515 1380502 1421105 1427660 1889108 1944670 1998724 2111356 2361385 2470372 2498405 2543030 2639195 2761004 2842210 3087965 3305939 3451255 3694873 3889340 4323151 4722770 4831757 4996810 5086060 5278390 5684420 6175930 6611878 6902510 7389746 8028709 8646302 8973263 9445540 9663514 9993620 10556780 11734267 12351860 13223756 13805020 14779492 16057418 16529695 17292604 17946526 18474365 19327028 21615755 23468534 24158785 32114836 33059390 35893052 36948730 40143545 43231510 44866315 46937068 48317570 56200963 58671335 62812841 66118780 73897460 80287090 82139869 86463020 89732630 96635140 112401926 117342670 125625682 152545471 160574180 164279738 179465260 224803852 234685340 251251364 281004815 305090942 314064205 328559476 410699345 562009630 610181884 628128410 762727355 821398690 1067818297 1124019260 1256256820 1525454710 1642797380 2135636594 3050909420 4271273188 5339091485 10678182970 21356365940
- Sum of all divisors σ(n): 61750913280
- Sum of proper divisors (its aliquot sum) s(n): 40394547340
- 21356365940 is an abundant number, because the sum of its proper divisors (40394547340) is greater than itself. Its abundance is 19038181400
Bases of 21356365940
- Binary: 100111110001111000001001000011101002
- Hexadecimal: 0x4F8F04874
- Base-36: 9T711F8
Squares and roots of 21356365940
- 21356365940 squared (213563659402) is 456094366163192083600
- 21356365940 cubed (213563659403) is 9740518186953483895872672584000
-
The
square root of 21356365940 is 146138.1741366711 -
The
cube root of 21356365940 is 2774.4428582545
Scales and comparisons
How big is 21356365940?- 21,356,365,940 seconds is equal to 679 years, 3 weeks, 3 days, 3 hours, 52 minutes, 20 seconds.
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To count from 1 to 21,356,365,940 would take you about one thousand, three hundred fifty-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 21356365940 cubic inches would be around 231.2 feet tall.
Recreational maths with 21356365940
- 21356365940 backwards is 04956365312
- The number of decimal digits it has is: 11
- The sum of 21356365940's digits is 44
- More coming soon!
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