21321215370
21,321,215,370 is an even composite number composed of eight prime numbers multiplied together.
21321215370 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 21321215370:
2 × 32 × 5 × 7 × 13 × 19 × 181 × 757
(2 × 3 × 3 × 5 × 7 × 13 × 19 × 181 × 757)See below for interesting mathematical facts about the number 21321215370 from the Numbermatics database.
Names of 21321215370
- Cardinal: 21321215370 can be written as Twenty-one billion, three hundred twenty-one million, two hundred fifteen thousand, three hundred seventy.
Scientific notation
- Scientific notation: 2.132121537 × 1010
Factors of 21321215370
Divisors of 21321215370
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 5 6 7 9 10 13 14 15 18 19 21 26 30 35 38 39 42 45 57 63 65 70 78 90 91 95 105 114 117 126 130 133 171 181 182 190 195 210 234 247 266 273 285 315 342 362 390 399 455 494 543 546 570 585 630 665 741 757 798 819 855 905 910 1086 1170 1197 1235 1267 1330 1365 1482 1514 1629 1638 1710 1729 1810 1995 2223 2271 2353 2394 2470 2534 2715 2730 3258 3439 3458 3705 3785 3801 3990 4095 4446 4542 4706 5187 5299 5430 5985 6335 6813 6878 7059 7410 7570 7602 8145 8190 8645 9841 10317 10374 10598 11115 11355 11403 11765 11970 12670 13626 14118 14383 15561 15897 16290 16471 17195 17290 19005 19682 20634 21177 22230 22710 22806 23530 24073 25935 26495 28766 29523 30951 31122 31794 32942 34065 34390 35295 38010 42354 43149 44707 47691 48146 49205 49413 51585 51870 52990 57015 59046 61902 68130 68887 70590 71915 72219 77805 79485 82355 86298 88569 89414 95382 98410 98826 100681 103170 105885 114030 120365 129447 134121 137017 137774 143830 144438 147615 148239 154755 155610 158970 164710 177138 186979 201362 206661 211770 215745 216657 223535 238455 240730 247065 258894 268242 274034 295230 296478 302043 309510 312949 344435 361095 373958 402363 411051 413322 431490 433314 442845 447070 476910 494130 503405 560937 604086 619983 625898 647235 670605 685085 688870 722190 741195 804726 822102 885690 906129 934895 938847 959119 1006810 1033305 1083285 1121874 1233153 1239966 1294470 1308853 1341210 1370170 1482390 1510215 1564745 1682811 1781221 1812258 1869790 1877694 1918238 2011815 2055255 2066610 2166570 2466306 2603323 2617706 2804685 2816541 2877357 3020430 3099915 3129490 3365622 3562442 3926559 4023630 4110510 4530645 4694235 4795595 5206646 5343663 5609370 5633082 5754714 6165765 6199830 6544265 7809969 7853118 8414055 8632071 8906105 9061290 9388470 9591190 10687326 11779677 12331530 12468547 13016615 13088530 14082705 14386785 15619938 16030989 16828110 17264142 17812210 18223261 19632795 23429907 23559354 24937094 26033230 26718315 28165410 28773570 32061978 33843199 36446522 37405641 39049845 39265590 43160355 46859814 53436630 54669783 58898385 62342735 67686398 74811282 78099690 80154945 86320710 91116305 101529597 109339566 112216923 117149535 117796770 124685470 160309890 164009349 169215995 182232610 187028205 203059194 224433846 234299070 236902393 273348915 304588791 328018698 338431990 374056410 473804786 507647985 546697830 561084615 609177582 710707179 820046745 1015295970 1122169230 1184511965 1421414358 1522943955 1640093490 2132121537 2369023930 3045887910 3553535895 4264243074 7107071790 10660607685 21321215370
- Sum of all divisors σ(n): 72311016960
- Sum of proper divisors (its aliquot sum) s(n): 50989801590
- 21321215370 is an abundant number, because the sum of its proper divisors (50989801590) is greater than itself. Its abundance is 29668586220
Bases of 21321215370
- Binary: 100111101101101011111101101100010102
- Hexadecimal: 0x4F6D7ED8A
- Base-36: 9SM3N2I
Squares and roots of 21321215370
- 21321215370 squared (213212153702) is 454594224853924236900
- 21321215370 cubed (213212153703) is 9692501374068725444607801153000
-
The
square root of 21321215370 is 146017.8597637975 -
The
cube root of 21321215370 is 2772.9198650349
Scales and comparisons
How big is 21321215370?- 21,321,215,370 seconds is equal to 677 years, 49 weeks, 2 days, 7 hours, 49 minutes, 30 seconds.
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To count from 1 to 21,321,215,370 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 21321215370 cubic inches would be around 231.1 feet tall.
Recreational maths with 21321215370
- 21321215370 backwards is 07351212312
- The number of decimal digits it has is: 11
- The sum of 21321215370's digits is 27
- More coming soon!
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