21000824640
21,000,824,640 is an even composite number composed of five prime numbers multiplied together.
21000824640 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty divisors.
Prime factorization of 21000824640:
26 × 34 × 5 × 19 × 42643
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 19 × 42643)See below for interesting mathematical facts about the number 21000824640 from the Numbermatics database.
Names of 21000824640
- Cardinal: 21000824640 can be written as Twenty-one billion, eight hundred twenty-four thousand, six hundred forty.
Scientific notation
- Scientific notation: 2.100082464 × 1010
Factors of 21000824640
Divisors of 21000824640
- Number of divisors d(n): 280
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 27 30 32 36 38 40 45 48 54 57 60 64 72 76 80 81 90 95 96 108 114 120 135 144 152 160 162 171 180 190 192 216 228 240 270 285 288 304 320 324 342 360 380 405 432 456 480 513 540 570 576 608 648 684 720 760 810 855 864 912 960 1026 1080 1140 1216 1296 1368 1440 1520 1539 1620 1710 1728 1824 2052 2160 2280 2565 2592 2736 2880 3040 3078 3240 3420 3648 4104 4320 4560 5130 5184 5472 6080 6156 6480 6840 7695 8208 8640 9120 10260 10944 12312 12960 13680 15390 16416 18240 20520 24624 25920 27360 30780 32832 41040 42643 49248 54720 61560 82080 85286 98496 123120 127929 164160 170572 213215 246240 255858 341144 383787 426430 492480 511716 639645 682288 767574 810217 852860 1023432 1151361 1279290 1364576 1535148 1620434 1705720 1918935 2046864 2302722 2430651 2558580 2729152 3070296 3240868 3411440 3454083 3837870 4051085 4093728 4605444 4861302 5117160 5756805 6140592 6481736 6822880 6908166 7291953 7675740 8102170 8187456 9210888 9722604 10234320 11513610 12153255 12281184 12963472 13645760 13816332 14583906 15351480 16204340 17270415 18421776 19445208 20468640 21875859 23027220 24306510 24562368 25926944 27632664 29167812 30702960 32408680 34540830 36459765 36843552 38890416 40937280 43751718 46054440 48613020 51853888 55265328 58335624 61405920 64817360 65627577 69081660 72919530 73687104 77780832 87503436 92108880 97226040 109379295 110530656 116671248 122811840 129634720 131255154 138163320 145839060 155561664 175006872 184217760 194452080 218758590 221061312 233342496 259269440 262510308 276326640 291678120 328137885 350013744 368435520 388904160 437517180 466684992 525020616 552653280 583356240 656275770 700027488 777808320 875034360 1050041232 1105306560 1166712480 1312551540 1400054976 1750068720 2100082464 2333424960 2625103080 3500137440 4200164928 5250206160 7000274880 10500412320 21000824640
- Sum of all divisors σ(n): 78637241760
- Sum of proper divisors (its aliquot sum) s(n): 57636417120
- 21000824640 is an abundant number, because the sum of its proper divisors (57636417120) is greater than itself. Its abundance is 36635592480
Bases of 21000824640
- Binary: 100111000111011111100100111010000002
- Hexadecimal: 0x4E3BF2740
- Base-36: 9NBCK00
Squares and roots of 21000824640
- 21000824640 squared (210008246402) is 441034635560031129600
- 21000824640 cubed (210008246403) is 9262091041562521945670713344000
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The
square root of 21000824640 is 144916.6127122767 -
The
cube root of 21000824640 is 2758.9602889123
Scales and comparisons
How big is 21000824640?- 21,000,824,640 seconds is equal to 667 years, 39 weeks, 4 days, 2 hours, 24 minutes.
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To count from 1 to 21,000,824,640 would take you about one thousand, three hundred thirty-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 21000824640 cubic inches would be around 229.9 feet tall.
Recreational maths with 21000824640
- 21000824640 backwards is 04642800012
- 21000824640 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21000824640's digits is 27
- More coming soon!
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