21491242240
21,491,242,240 is an even composite number composed of six prime numbers multiplied together.
21491242240 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 21491242240:
28 × 5 × 13 × 172 × 41 × 109
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 17 × 17 × 41 × 109)See below for interesting mathematical facts about the number 21491242240 from the Numbermatics database.
Names of 21491242240
- Cardinal: 21491242240 can be written as Twenty-one billion, four hundred ninety-one million, two hundred forty-two thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.149124224 × 1010
Factors of 21491242240
Divisors of 21491242240
- Number of divisors d(n): 432
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 26 32 34 40 41 52 64 65 68 80 82 85 104 109 128 130 136 160 164 170 205 208 218 221 256 260 272 289 320 328 340 410 416 436 442 520 533 544 545 578 640 656 680 697 820 832 872 884 1040 1066 1088 1090 1105 1156 1280 1312 1360 1394 1417 1445 1640 1664 1744 1768 1853 2080 2132 2176 2180 2210 2312 2624 2665 2720 2788 2834 2890 3280 3328 3485 3488 3536 3706 3757 4160 4264 4352 4360 4420 4469 4624 5248 5330 5440 5576 5668 5780 6560 6970 6976 7072 7085 7412 7514 8320 8528 8720 8840 8938 9061 9248 9265 10496 10660 10880 11152 11336 11560 11849 13120 13940 13952 14144 14170 14824 15028 16640 17056 17440 17680 17876 18122 18496 18530 18785 21320 21760 22304 22345 22672 23120 23698 24089 26240 27880 27904 28288 28340 29648 30056 31501 34112 34880 35360 35752 36244 36992 37060 37570 42640 44608 44690 45305 45344 46240 47396 48178 52480 55760 56576 56680 58097 59245 59296 60112 63002 68224 69760 70720 71504 72488 73984 74120 75140 75973 85280 89216 89380 90610 90688 92480 94792 96356 111520 113360 116194 118490 118592 120224 120445 126004 136448 139520 141440 143008 144976 148240 150280 151946 154037 157505 170560 178432 178760 181220 181376 184960 189584 192712 223040 226720 232388 236980 237184 240448 240890 252008 282880 286016 289952 290485 296480 300560 303892 308074 315010 341120 357520 362440 362752 369920 379168 379865 385424 409513 446080 453440 464776 473960 474368 480896 481780 504016 572032 579904 580970 592960 601120 607784 616148 630020 682240 715040 724880 758336 759730 770185 770848 819026 892160 906880 929552 947920 961792 963560 987649 1008032 1144064 1159808 1161940 1185920 1202240 1215568 1232296 1260040 1291541 1430080 1449760 1516672 1519460 1540370 1541696 1638052 1813760 1859104 1895840 1927120 1975298 2016064 2047565 2319616 2323880 2371840 2404480 2431136 2464592 2520080 2583082 2860160 2899520 3033344 3038920 3080740 3083392 3276104 3718208 3791680 3854240 3950596 4032128 4095130 4647760 4808960 4862272 4929184 4938245 5040160 5166164 5720320 5799040 6077840 6161480 6166784 6457705 6552208 7436416 7583360 7708480 7901192 8064256 8190260 9295520 9724544 9858368 9876490 10080320 10332328 11598080 12155680 12322960 12915410 13104416 14872832 15166720 15416960 15802384 16380520 16790033 18591040 19449088 19716736 19752980 20160640 20664656 24311360 24645920 25830820 26208832 30833920 31604768 32761040 33580066 37182080 39433472 39505960 40321280 41329312 48622720 49291840 51661640 52417664 63209536 65522080 67160132 74364160 79011920 82658624 83950165 97245440 98583680 103323280 104835328 126419072 131044160 134320264 158023840 165317248 167900330 197167360 206646560 252838144 262088320 268640528 316047680 330634496 335800660 413293120 524176640 537281056 632095360 671601320 826586240 1074562112 1264190720 1343202640 1653172480 2149124224 2686405280 4298248448 5372810560 10745621120 21491242240
- Sum of all divisors σ(n): 60880826160
- Sum of proper divisors (its aliquot sum) s(n): 39389583920
- 21491242240 is an abundant number, because the sum of its proper divisors (39389583920) is greater than itself. Its abundance is 17898341680
Bases of 21491242240
- Binary: 101000000001111101001010101000000002
- Hexadecimal: 0x500FA5500
- Base-36: 9VFBWN4
Squares and roots of 21491242240
- 21491242240 squared (214912422402) is 461873493018360217600
- 21491242240 cubed (214912422403) is 9926235122692528204020711424000
-
The
square root of 21491242240 is 146598.9162306461 -
The
cube root of 21491242240 is 2780.2712776351
Scales and comparisons
How big is 21491242240?- 21,491,242,240 seconds is equal to 683 years, 18 weeks, 3 days, 5 hours, 30 minutes, 40 seconds.
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To count from 1 to 21,491,242,240 would take you about one thousand, three hundred sixty-six 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 21491242240 cubic inches would be around 231.7 feet tall.
Recreational maths with 21491242240
- 21491242240 backwards is 04224219412
- The number of decimal digits it has is: 11
- The sum of 21491242240's digits is 31
- More coming soon!
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The information we have on file for 21491242240 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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