21279331920
21,279,331,920 is an even composite number composed of seven prime numbers multiplied together.
21279331920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 21279331920:
24 × 3 × 5 × 72 × 11 × 271 × 607
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 7 × 11 × 271 × 607)See below for interesting mathematical facts about the number 21279331920 from the Numbermatics database.
Names of 21279331920
- Cardinal: 21279331920 can be written as Twenty-one billion, two hundred seventy-nine million, three hundred thirty-one thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 2.127933192 × 1010
Factors of 21279331920
Divisors of 21279331920
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 11 12 14 15 16 20 21 22 24 28 30 33 35 40 42 44 48 49 55 56 60 66 70 77 80 84 88 98 105 110 112 120 132 140 147 154 165 168 176 196 210 220 231 240 245 264 271 280 294 308 330 336 385 392 420 440 462 490 528 539 542 560 588 607 616 660 735 770 784 813 840 880 924 980 1078 1084 1155 1176 1214 1232 1320 1355 1470 1540 1617 1626 1680 1821 1848 1897 1960 2156 2168 2310 2352 2428 2640 2695 2710 2940 2981 3035 3080 3234 3252 3642 3696 3794 3920 4065 4249 4312 4336 4620 4856 5390 5420 5691 5880 5962 6070 6160 6468 6504 6677 7284 7588 8085 8130 8498 8624 8943 9105 9240 9485 9712 10780 10840 11382 11760 11924 12140 12747 12936 13008 13279 13354 14568 14905 15176 16170 16260 16996 17886 18210 18480 18970 20031 20867 21245 21560 21680 22764 23848 24280 25494 25872 26558 26708 28455 29136 29743 29810 30352 32340 32520 33385 33992 35772 36420 37940 39837 40062 41734 42490 43120 44715 45528 46739 47696 48560 50988 53116 53416 56910 59486 59620 62601 63735 64680 65040 66395 66770 67984 71544 72840 75880 79674 80124 83468 84980 89229 89430 91056 93478 100155 101976 104335 106232 106832 113820 118972 119240 125202 127470 129360 132790 133540 140217 143088 145680 146069 148715 151760 159348 160248 164497 166936 169960 178458 178860 186956 199185 200310 203952 208670 212464 227640 233695 237944 238480 250404 254940 265580 267080 280434 292138 297430 313005 318696 320496 327173 328994 333872 339920 356916 357720 373912 398370 400620 417340 438207 446145 455280 467390 475888 493491 500808 509880 531160 534160 560868 584276 594860 626010 637392 654346 657988 701085 713832 715440 730345 747824 796740 801240 822485 834680 876414 892290 934780 981519 986982 1001616 1019760 1062320 1121736 1151479 1168552 1189720 1252020 1308692 1315976 1402170 1427664 1460690 1593480 1602480 1635865 1644970 1669360 1752828 1784580 1809467 1869560 1963038 1973964 2191035 2243472 2302958 2337104 2379440 2467455 2504040 2617384 2631952 2804340 2921380 3186960 3271730 3289940 3454437 3505656 3569160 3618934 3739120 3926076 3947928 4382070 4605916 4907595 4934910 5008080 5234768 5428401 5608680 5757395 5842760 6543460 6579880 6908874 7011312 7138320 7237868 7852152 7895856 8060353 8764140 9047335 9211832 9815190 9869820 10856802 11217360 11514790 11685520 12666269 13086920 13159760 13817748 14475736 15704304 16120706 17272185 17528280 18094670 18423664 19630380 19739640 21713604 23029580 24181059 25332538 26173840 27142005 27635496 28951472 32241412 34544370 35056560 36189340 37998807 39260760 39479280 40301765 43427208 46059160 48362118 50665076 54284010 55270992 63331345 64482824 69088740 72378680 75997614 78521520 80603530 86854416 88663883 92118320 96724236 101330152 108568020 120905295 126662690 128965648 138177480 144757360 151995228 161207060 177327766 189994035 193448472 202660304 217136040 241810590 253325380 265991649 276354960 303990456 322414120 354655532 379988070 386896944 434272080 443319415 483621180 506650760 531983298 607980912 644828240 709311064 759976140 886638830 967242360 1013301520 1063966596 1329958245 1418622128 1519952280 1773277660 1934484720 2127933192 2659916490 3039904560 3546555320 4255866384 5319832980 7093110640 10639665960 21279331920
- Sum of all divisors σ(n): 84159184896
- Sum of proper divisors (its aliquot sum) s(n): 62879852976
- 21279331920 is an abundant number, because the sum of its proper divisors (62879852976) is greater than itself. Its abundance is 41600521056
Bases of 21279331920
- Binary: 100111101000101100011010110010100002
- Hexadecimal: 0x4F458D650
- Base-36: 9RX5XLC
Squares and roots of 21279331920
- 21279331920 squared (212793319202) is 452809966961530886400
- 21279331920 cubed (212793319203) is 9635493583658649603037413888000
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The
square root of 21279331920 is 145874.3703328313 -
The
cube root of 21279331920 is 2771.1029645153
Scales and comparisons
How big is 21279331920?- 21,279,331,920 seconds is equal to 676 years, 32 weeks, 13 hours, 32 minutes.
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To count from 1 to 21,279,331,920 would take you about one thousand, three hundred fifty-three 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 21279331920 cubic inches would be around 230.9 feet tall.
Recreational maths with 21279331920
- 21279331920 backwards is 02913397212
- The number of decimal digits it has is: 11
- The sum of 21279331920's digits is 39
- More coming soon!
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