21021931000
21,021,931,000 is an even composite number composed of five prime numbers multiplied together.
21021931000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21021931000:
23 × 53 × 72 × 232 × 811
(2 × 2 × 2 × 5 × 5 × 5 × 7 × 7 × 23 × 23 × 811)See below for interesting mathematical facts about the number 21021931000 from the Numbermatics database.
Names of 21021931000
- Cardinal: 21021931000 can be written as Twenty-one billion, twenty-one million, nine hundred thirty-one thousand.
Scientific notation
- Scientific notation: 2.1021931 × 1010
Factors of 21021931000
Divisors of 21021931000
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 23 25 28 35 40 46 49 50 56 70 92 98 100 115 125 140 161 175 184 196 200 230 245 250 280 322 350 392 460 490 500 529 575 644 700 805 811 875 920 980 1000 1058 1127 1150 1225 1288 1400 1610 1622 1750 1960 2116 2254 2300 2450 2645 2875 3220 3244 3500 3703 4025 4055 4232 4508 4600 4900 5290 5635 5677 5750 6125 6440 6488 7000 7406 8050 8110 9016 9800 10580 11270 11354 11500 12250 13225 14812 16100 16220 18515 18653 20125 20275 21160 22540 22708 23000 24500 25921 26450 28175 28385 29624 32200 32440 37030 37306 39739 40250 40550 45080 45416 49000 51842 52900 56350 56770 66125 74060 74612 79478 80500 81100 92575 93265 101375 103684 105800 112700 113540 129605 130571 132250 140875 141925 148120 149224 158956 161000 162200 185150 186530 198695 202750 207368 225400 227080 259210 261142 264500 281750 283850 317912 370300 373060 397390 405500 429019 462875 466325 518420 522284 529000 563500 567700 648025 652855 709625 740600 746120 794780 811000 858038 913997 925750 932650 993475 1036840 1044568 1127000 1135400 1296050 1305710 1419250 1589560 1716076 1827994 1851500 1865300 1986950 2145095 2331625 2592100 2611420 2838500 3003133 3240125 3264275 3432152 3655988 3703000 3730600 3973900 4290190 4569985 4663250 4967375 5184200 5222840 5677000 6006266 6480250 6528550 7311976 7947800 8580380 9139970 9326500 9934750 10725475 12012532 12960500 13057100 15015665 16321375 17160760 18279940 18653000 19869500 21021931 21450950 22849925 24025064 25921000 26114200 30031330 32642750 36559880 39739000 42043862 42901900 45699850 53627375 60062660 65285500 75078325 84087724 85803800 91399700 105109655 107254750 114249625 120125320 130571000 150156650 168175448 182799400 210219310 214509500 228499250 300313300 375391625 420438620 429019000 456998500 525548275 600626600 750783250 840877240 913997000 1051096550 1501566500 2102193100 2627741375 3003133000 4204386200 5255482750 10510965500 21021931000
- Sum of all divisors σ(n): 59892421680
- Sum of proper divisors (its aliquot sum) s(n): 38870490680
- 21021931000 is an abundant number, because the sum of its proper divisors (38870490680) is greater than itself. Its abundance is 17848559680
Bases of 21021931000
- Binary: 100111001010000000100110101111110002
- Hexadecimal: 0x4E50135F8
- Base-36: 9NNWXRS
Squares and roots of 21021931000
- 21021931000 squared (210219310002) is 441921582968761000000
- 21021931000 cubed (210219310003) is 9290045024580068897491000000000
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The
square root of 21021931000 is 144989.4168551623 -
The
cube root of 21021931000 is 2759.8842544053
Scales and comparisons
How big is 21021931000?- 21,021,931,000 seconds is equal to 668 years, 22 weeks, 3 days, 9 hours, 16 minutes, 40 seconds.
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To count from 1 to 21,021,931,000 would take you about one thousand, three hundred thirty-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 21021931000 cubic inches would be around 230 feet tall.
Recreational maths with 21021931000
- 21021931000 backwards is 00013912012
- The number of decimal digits it has is: 11
- The sum of 21021931000's digits is 19
- More coming soon!
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