21015217141520
21,015,217,141,520 is an even composite number composed of six prime numbers multiplied together.
21015217141520 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred divisors.
Prime factorization of 21015217141520:
24 × 5 × 74 × 19 × 461 × 12491
(2 × 2 × 2 × 2 × 5 × 7 × 7 × 7 × 7 × 19 × 461 × 12491)See below for interesting mathematical facts about the number 21015217141520 from the Numbermatics database.
Names of 21015217141520
- Cardinal: 21015217141520 can be written as Twenty-one trillion, fifteen billion, two hundred seventeen million, one hundred forty-one thousand, five hundred twenty.
Scientific notation
- Scientific notation: 2.101521714152 × 1013
Factors of 21015217141520
Divisors of 21015217141520
- Number of divisors d(n): 400
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 19 20 28 35 38 40 49 56 70 76 80 95 98 112 133 140 152 190 196 245 266 280 304 343 380 392 461 490 532 560 665 686 760 784 922 931 980 1064 1330 1372 1520 1715 1844 1862 1960 2128 2305 2401 2660 2744 3227 3430 3688 3724 3920 4610 4655 4802 5320 5488 6454 6517 6860 7376 7448 8759 9220 9310 9604 10640 12005 12491 12908 13034 13720 14896 16135 17518 18440 18620 19208 22589 24010 24982 25816 26068 27440 32270 32585 35036 36880 37240 38416 43795 45178 45619 48020 49964 51632 52136 61313 62455 64540 65170 70072 74480 87437 87590 90356 91238 96040 99928 104272 112945 122626 124910 129080 130340 140144 158123 174874 175180 180712 182476 192080 199856 225890 228095 237329 245252 249820 258160 260680 306565 316246 349748 350360 361424 364952 429191 437185 451780 456190 474658 490504 499640 521360 612059 613130 632492 699496 700720 729904 790615 858382 874370 903560 912380 949316 981008 999280 1106861 1186645 1224118 1226260 1264984 1398992 1581230 1661303 1716764 1748740 1807120 1824760 1898632 2145955 2213722 2373290 2448236 2452520 2529968 3004337 3060295 3162460 3322606 3433528 3497480 3649520 3797264 4284413 4291910 4427444 4746580 4896472 4905040 5534305 5758351 6008674 6120590 6324920 6645212 6867056 6994960 8306515 8568826 8583820 8854888 9493160 9792944 11068610 11516702 11629121 12017348 12241180 12649840 13290424 15021685 16613030 17137652 17167640 17709776 18986320 21030359 21422065 22137220 23033404 23258242 24034696 24482360 26580848 28791755 29990891 30043370 33226060 34275304 34335280 40308457 42060718 42844130 44274440 46066808 46516484 48069392 48964720 57583510 58145605 59981782 60086740 66452120 68550608 80616914 81403847 84121436 85688260 88548880 92133616 93032968 105151795 109408669 115167020 116291210 119963564 120173480 132904240 149954455 161233828 162807694 168242872 171376520 186065936 201542285 210303590 218817338 230334040 232582420 239927128 240346960 282159199 299908910 322467656 325615388 336485744 342753040 403084570 407019235 420607180 437634676 460668080 465164840 479854256 547043345 564318398 569826929 599817820 644935312 651230776 765860683 806169140 814038470 841214360 875269352 930329680 1094086690 1128636796 1139653858 1199635640 1302461552 1410795995 1531721366 1612338280 1628076940 1682428720 1750538704 1975114393 2188173380 2257273592 2279307716 2399271280 2821591990 2849134645 3063442732 3224676560 3256153880 3829303415 3950228786 4376346760 4514547184 4558615432 5361024781 5643183980 5698269290 6126885464 6512307760 7658606830 7900457572 8752693520 9117230864 9875571965 10722049562 11286367960 11396538580 12253770928 13825800751 15317213660 15800915144 19751143930 21444099124 22572735920 22793077160 26805123905 27651601502 30634427320 31601830288 37527173467 39502287860 42888198248 45586154320 53610247810 55303203004 61268854640 69129003755 75054346934 79004575720 85776396496 107220495620 110606406008 138258007510 150108693868 158009151440 187635867335 214440991240 221212812016 262690214269 276516015020 300217387736 375271734670 428881982480 525380428538 553032030040 600434775472 750543469340 1050760857076 1106064060080 1313451071345 1501086938680 2101521714152 2626902142690 3002173877360 4203043428304 5253804285380 10507608570760 21015217141520
- Sum of all divisors σ(n): 60135371714880
- Sum of proper divisors (its aliquot sum) s(n): 39120154573360
- 21015217141520 is an abundant number, because the sum of its proper divisors (39120154573360) is greater than itself. Its abundance is 18104937431840
Bases of 21015217141520
- Binary: 1001100011100111111001000110101110111000100002
- Hexadecimal: 0x131CFC8D7710
- Base-36: 7G699OT8W
Squares and roots of 21015217141520
- 21015217141520 squared (210152171415202) is 441639351505236039707910400
- 21015217141520 cubed (210152171415203) is 9281146870122613035703358012020279808000
-
The
square root of 21015217141520 is 4584235.7205449197 -
The
cube root of 21015217141520 is 27595.9041135057
Scales and comparisons
How big is 21015217141520?- 21,015,217,141,520 seconds is equal to 668,218 years, 46 weeks, 5 days, 21 hours, 5 minutes, 20 seconds.
-
To count from 1 to 21,015,217,141,520 would take you about one million, six hundred seventy thousand, five hundred forty-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 21015217141520 cubic inches would be around 2299.7 feet tall.
Recreational maths with 21015217141520
- 21015217141520 backwards is 02514171251012
- The number of decimal digits it has is: 14
- The sum of 21015217141520's digits is 32
- More coming soon!
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