21313431720
21,313,431,720 is an even composite number composed of seven prime numbers multiplied together.
21313431720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 21313431720:
23 × 33 × 5 × 7 × 61 × 113 × 409
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 61 × 113 × 409)See below for interesting mathematical facts about the number 21313431720 from the Numbermatics database.
Names of 21313431720
- Cardinal: 21313431720 can be written as Twenty-one billion, three hundred thirteen million, four hundred thirty-one thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.131343172 × 1010
Factors of 21313431720
Divisors of 21313431720
- Number of divisors d(n): 512
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 61 63 70 72 84 90 105 108 113 120 122 126 135 140 168 180 183 189 210 216 226 244 252 270 280 305 315 339 360 366 378 409 420 427 452 488 504 540 549 565 610 630 678 732 756 791 818 840 854 904 915 945 1017 1080 1098 1130 1220 1227 1260 1281 1356 1464 1512 1582 1636 1647 1695 1708 1830 1890 2034 2045 2135 2196 2260 2373 2440 2454 2520 2562 2712 2745 2863 3051 3164 3272 3294 3390 3416 3660 3681 3780 3843 3955 4068 4090 4270 4392 4520 4746 4908 5085 5124 5490 5726 6102 6135 6328 6405 6588 6780 6893 7119 7320 7362 7560 7686 7910 8136 8180 8235 8540 8589 9492 9816 10170 10248 10980 11043 11452 11529 11865 12204 12270 12810 13176 13560 13786 14238 14315 14724 15255 15372 15820 16360 16470 17080 17178 18405 18984 19215 20340 20679 21357 21960 22086 22904 23058 23730 24408 24540 24949 25620 25767 27572 28476 28630 29448 30510 30744 31640 32940 34356 34465 35595 36810 38430 40680 41358 42714 42945 44172 46116 46217 47460 48251 49080 49898 51240 51534 55144 55215 56952 57260 57645 61020 62037 65880 68712 68930 71190 73620 74847 76860 77301 82716 85428 85890 88344 92232 92434 94920 96502 99796 103068 103395 106785 110430 114520 115290 122040 124074 124745 128835 137860 138651 142380 144753 147240 149694 153720 154602 165432 170856 171780 174643 184868 186111 193004 199592 206136 206790 213570 220860 224541 230580 231085 241255 248148 249490 257670 275720 277302 284760 289506 299388 309204 310185 323519 343560 349286 369736 372222 374235 386008 386505 413580 415953 427140 434259 441720 449082 461160 462170 482510 496296 498980 515340 523929 554604 579012 598776 618408 620370 647038 673623 693255 698572 723765 744444 748470 773010 827160 831906 854280 868518 873215 898164 924340 930555 965020 970557 997960 1030680 1047858 1109208 1122705 1158024 1240740 1247859 1294076 1302777 1347246 1386510 1397144 1447530 1488888 1496940 1546020 1571787 1617595 1663812 1737036 1746430 1796328 1848680 1861110 1930040 1941114 2079765 2095716 2171295 2245410 2481480 2495718 2588152 2605554 2619645 2694492 2773020 2819237 2895060 2911671 2993880 3092040 3143574 3235190 3327624 3368115 3474072 3492860 3722220 3882228 4159530 4191432 4342590 4490820 4715361 4852785 4991436 5211108 5239290 5388984 5546040 5638474 5790120 5823342 6239295 6287148 6470380 6513885 6736230 6985720 7444440 7764456 7858935 8319060 8457711 8685180 8735013 8981640 9430722 9705570 9982872 10422216 10478580 11276948 11646684 12478590 12574296 12940760 13027770 13472460 14096185 14558355 15717870 16638120 16915422 17370360 17470026 18861444 19411140 19734659 20957160 22553896 23293368 23576805 24957180 25373133 26055540 26944920 28192370 29116710 31435740 33830844 34940052 37722888 38822280 39469318 42288555 43675065 47153610 49914360 50746266 52111080 56384740 58233420 59203977 62871480 67661688 69880104 76119399 78938636 84577110 87350130 94307220 98673295 101492532 112769480 116466840 118407954 126865665 152238798 157877272 169154220 174700260 177611931 188614440 197346590 202985064 236815908 253731330 296019885 304477596 338308440 349400520 355223862 380596995 394693180 473631816 507462660 532835793 592039770 608955192 710447724 761193990 789386360 888059655 1014925320 1065671586 1184079540 1420895448 1522387980 1776119310 2131343172 2368159080 2664178965 3044775960 3552238620 4262686344 5328357930 7104477240 10656715860 21313431720
- Sum of all divisors σ(n): 83458944000
- Sum of proper divisors (its aliquot sum) s(n): 62145512280
- 21313431720 is an abundant number, because the sum of its proper divisors (62145512280) is greater than itself. Its abundance is 40832080560
Bases of 21313431720
- Binary: 100111101100110000100101000101010002
- Hexadecimal: 0x4F66128A8
- Base-36: 9SHGT60
Squares and roots of 21313431720
- 21313431720 squared (213134317202) is 454262371683102158400
- 21313431720 cubed (213134317203) is 9681890041833059330843024448000
-
The
square root of 21313431720 is 145991.2042555989 -
The
cube root of 21313431720 is 2772.5823910785
Scales and comparisons
How big is 21313431720?- 21,313,431,720 seconds is equal to 677 years, 36 weeks, 3 days, 5 hours, 42 minutes.
-
To count from 1 to 21,313,431,720 would take you about one thousand, three hundred fifty-five 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 21313431720 cubic inches would be around 231 feet tall.
Recreational maths with 21313431720
- 21313431720 backwards is 02713431312
- 21313431720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21313431720's digits is 27
- More coming soon!
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