21050403990
21,050,403,990 is an even composite number composed of eight prime numbers multiplied together.
21050403990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21050403990:
2 × 3 × 5 × 7 × 11 × 31 × 612 × 79
(2 × 3 × 5 × 7 × 11 × 31 × 61 × 61 × 79)See below for interesting mathematical facts about the number 21050403990 from the Numbermatics database.
Names of 21050403990
- Cardinal: 21050403990 can be written as Twenty-one billion, fifty million, four hundred three thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.105040399 × 1010
Factors of 21050403990
Divisors of 21050403990
- Number of divisors d(n): 384
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Complete list of divisors:
1 2 3 5 6 7 10 11 14 15 21 22 30 31 33 35 42 55 61 62 66 70 77 79 93 105 110 122 154 155 158 165 183 186 210 217 231 237 305 310 330 341 366 385 395 427 434 462 465 474 553 610 651 671 682 770 790 854 869 915 930 1023 1085 1106 1155 1185 1281 1302 1342 1659 1705 1738 1830 1891 2013 2046 2135 2170 2310 2370 2387 2449 2562 2607 2765 3255 3318 3355 3410 3721 3782 4026 4270 4345 4697 4774 4819 4898 5115 5214 5530 5673 6083 6405 6510 6710 7161 7347 7442 8295 8690 9394 9455 9638 10065 10230 11163 11346 11935 12166 12245 12810 13035 13237 14091 14322 14457 14694 16590 17143 18249 18605 18910 20130 20801 22326 23485 23870 24095 24490 26047 26070 26474 26939 28182 28365 28914 30415 33733 34286 35805 36498 36735 37210 39711 40931 41602 46970 48190 51429 52094 53009 53878 55815 56730 60830 62403 66185 67466 70455 71610 72285 73470 78141 79422 80817 81862 85715 91245 101199 102858 104005 106018 111630 115351 122793 124806 130235 132370 134695 140910 144570 145607 149389 156282 159027 161634 168665 171430 182490 188573 198555 202398 204655 208010 230702 245586 257145 260470 265045 269390 286517 291214 293959 298778 312015 318054 337330 346053 371063 377146 390705 397110 404085 409310 436821 448167 505995 514290 530090 565719 573034 576755 587918 613965 624030 692106 728035 742126 746945 781410 795135 807457 808170 859551 873642 881877 896334 942865 1011990 1045723 1113189 1131438 1153510 1227930 1268861 1432585 1456070 1469795 1493890 1590270 1614914 1643279 1719102 1730265 1763754 1855315 1885730 2057713 2091446 2184105 2226378 2240835 2422371 2537722 2828595 2865170 2939590 3137169 3233549 3286558 3460530 3710630 3806583 4037285 4115426 4297755 4368210 4409385 4481670 4844742 4929837 5228615 5565945 5657190 6173139 6274338 6344305 6467098 7613166 8074570 8216395 8595510 8818770 8882027 9112729 9700647 9859674 10288565 10457230 11131890 11502953 12111855 12346278 12688610 15685845 16167745 16432790 17764054 18225458 19032915 19401294 20577130 22634843 23005906 24223710 24649185 26646081 27338187 30865695 31371690 32335490 34508859 38065830 44410135 45269686 45563645 48503235 49298370 53292162 54676374 57514765 61731390 63789103 67904529 69017718 88820270 91127290 97006470 100240019 113174215 115029530 127578206 133230405 135809058 136690935 172544295 191367309 200480038 226348430 266460810 273381870 300720057 318945515 339522645 345088590 382734618 501200095 601440114 637891030 679045290 701680133 956836545 1002400190 1403360266 1503600285 1913673090 2105040399 3007200570 3508400665 4210080798 7016801330 10525201995 21050403990
- Sum of all divisors σ(n): 66939125760
- Sum of proper divisors (its aliquot sum) s(n): 45888721770
- 21050403990 is an abundant number, because the sum of its proper divisors (45888721770) is greater than itself. Its abundance is 24838317780
Bases of 21050403990
- Binary: 100111001101011001110101100100101102
- Hexadecimal: 0x4E6B3AC96
- Base-36: 9O4V7O6
Squares and roots of 21050403990
- 21050403990 squared (210504039902) is 443119508142207920100
- 21050403990 cubed (210504039903) is 9327844662243571088682641199000
-
The
square root of 21050403990 is 145087.5735202709 -
The
cube root of 21050403990 is 2761.1297268143
Scales and comparisons
How big is 21050403990?- 21,050,403,990 seconds is equal to 669 years, 17 weeks, 3 days, 22 hours, 26 minutes, 30 seconds.
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To count from 1 to 21,050,403,990 would take you about one thousand, three hundred thirty-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 21050403990 cubic inches would be around 230.1 feet tall.
Recreational maths with 21050403990
- 21050403990 backwards is 09930405012
- 21050403990 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21050403990's digits is 33
- More coming soon!
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The information we have on file for 21050403990 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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