21031040394
21,031,040,394 is an even composite number composed of six prime numbers multiplied together.
21031040394 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 21031040394:
2 × 34 × 72 × 132 × 61 × 257
(2 × 3 × 3 × 3 × 3 × 7 × 7 × 13 × 13 × 61 × 257)See below for interesting mathematical facts about the number 21031040394 from the Numbermatics database.
Names of 21031040394
- Cardinal: 21031040394 can be written as Twenty-one billion, thirty-one million, forty thousand, three hundred ninety-four.
Scientific notation
- Scientific notation: 2.1031040394 × 1010
Factors of 21031040394
Divisors of 21031040394
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 6 7 9 13 14 18 21 26 27 39 42 49 54 61 63 78 81 91 98 117 122 126 147 162 169 182 183 189 234 257 273 294 338 351 366 378 427 441 507 514 546 549 567 637 702 771 793 819 854 882 1014 1053 1098 1134 1183 1274 1281 1323 1521 1542 1586 1638 1647 1799 1911 2106 2313 2366 2379 2457 2562 2646 2989 3042 3294 3341 3549 3598 3822 3843 3969 4563 4626 4758 4914 4941 5397 5551 5733 5978 6682 6939 7098 7137 7371 7686 7938 8281 8967 9126 9882 10023 10309 10647 10794 11102 11466 11529 12593 13689 13878 14274 14742 15677 16191 16562 16653 17199 17934 20046 20618 20817 21294 21411 23058 23387 24843 25186 26901 27378 30069 30927 31354 31941 32382 33306 34398 34587 37779 38857 41634 42822 43433 46774 47031 48573 49686 49959 51597 53802 60138 61854 63882 64233 69174 70161 72163 74529 75558 77714 80703 86866 90207 92781 94062 95823 97146 99918 103194 109739 113337 116571 128466 130299 140322 141093 144326 145719 149058 149877 161406 163709 180414 185562 191646 203801 210483 216489 219478 223587 226674 233142 242109 260598 270621 278343 282186 291438 299754 304031 327418 329217 340011 349713 390897 407602 420966 423279 432978 447174 449631 484218 491127 505141 541242 556686 608062 611403 631449 649467 658434 670761 680022 699426 768173 781794 835029 846558 899262 912093 982254 987651 1010282 1020033 1049139 1172691 1222806 1262898 1269837 1298934 1341522 1426607 1473381 1515423 1536346 1670058 1824186 1834209 1894347 1948401 1975302 2040066 2098278 2128217 2304519 2345382 2539674 2649413 2736279 2853214 2946762 2962953 3030846 3147417 3518073 3668418 3788694 3896802 4256434 4279821 4420143 4546269 4609038 5298826 5472558 5502627 5845203 5925906 6294834 6384651 6913557 7036146 7948239 8208837 8559642 8840286 8888859 9092538 9986249 11005254 11690406 12769302 12839463 13260429 13638807 13827114 15896478 16417674 16507881 17777718 18545891 19153953 19972498 20740671 23844717 24626511 25678926 26520858 27277614 29958747 33015762 37091782 38307906 38518389 40916421 41481342 47689434 49253022 55637673 57461859 59917494 62222013 71534151 77036778 81832842 89876241 111275346 114923718 115555167 124444026 129821237 143068302 166913019 172385577 179752482 214602453 231110334 259642474 269628723 333826038 344771154 389463711 429204906 500739057 539257446 778927422 808886169 1001478114 1168391133 1502217171 1617772338 2336782266 3004434342 3505173399 7010346798 10515520197 21031040394
- Sum of all divisors σ(n): 60568102188
- Sum of proper divisors (its aliquot sum) s(n): 39537061794
- 21031040394 is an abundant number, because the sum of its proper divisors (39537061794) is greater than itself. Its abundance is 18506021400
Bases of 21031040394
- Binary: 100111001011000110000110101100010102
- Hexadecimal: 0x4E58C358A
- Base-36: 9NTC6MI
Squares and roots of 21031040394
- 21031040394 squared (210310403942) is 442304660054059675236
- 21031040394 cubed (210310403943) is 9302127172051367253574837482984
-
The
square root of 21031040394 is 145020.8274490253 -
The
cube root of 21031040394 is 2760.2828419967
Scales and comparisons
How big is 21031040394?- 21,031,040,394 seconds is equal to 668 years, 37 weeks, 3 days, 19 hours, 39 minutes, 54 seconds.
-
To count from 1 to 21,031,040,394 would take you about one thousand, three hundred thirty-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 21031040394 cubic inches would be around 230 feet tall.
Recreational maths with 21031040394
- 21031040394 backwards is 49304013012
- 21031040394 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21031040394's digits is 27
- More coming soon!
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