21009888240
21,009,888,240 is an even composite number composed of six prime numbers multiplied together.
21009888240 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 21009888240:
24 × 3 × 5 × 113 × 89 × 739
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 11 × 11 × 89 × 739)See below for interesting mathematical facts about the number 21009888240 from the Numbermatics database.
Names of 21009888240
- Cardinal: 21009888240 can be written as Twenty-one billion, nine million, eight hundred eighty-eight thousand, two hundred forty.
Scientific notation
- Scientific notation: 2.100988824 × 1010
Factors of 21009888240
Divisors of 21009888240
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 89 110 120 121 132 165 176 178 220 240 242 264 267 330 356 363 440 445 484 528 534 605 660 712 726 739 880 890 968 979 1068 1210 1320 1331 1335 1424 1452 1478 1780 1815 1936 1958 2136 2217 2420 2640 2662 2670 2904 2937 2956 3560 3630 3695 3916 3993 4272 4434 4840 4895 5324 5340 5808 5874 5912 6655 7120 7260 7390 7832 7986 8129 8868 9680 9790 10648 10680 10769 11085 11748 11824 13310 14520 14685 14780 15664 15972 16258 17736 19580 19965 21296 21360 21538 22170 23496 24387 26620 29040 29370 29560 31944 32307 32516 35472 39160 39930 40645 43076 44340 46992 48774 53240 53845 58740 59120 63888 64614 65032 65771 78320 79860 81290 86152 88680 89419 97548 106480 107690 117480 118459 121935 129228 130064 131542 159720 161535 162580 172304 177360 178838 195096 197313 215380 234960 236918 243870 258456 263084 268257 319440 323070 325160 328855 355377 357676 390192 394626 430760 447095 473836 487740 516912 526168 536514 592295 646140 650320 657710 710754 715352 723481 789252 861520 894190 947672 975480 983609 986565 1052336 1073028 1184590 1292280 1315420 1341285 1421508 1430704 1446962 1578504 1776885 1788380 1895344 1950960 1967218 1973130 2146056 2170443 2369180 2584560 2630840 2682570 2843016 2893924 2950827 3157008 3553770 3576760 3617405 3934436 3946260 4292112 4340886 4738360 4918045 5261680 5365140 5686032 5787848 5901654 7107540 7153520 7234810 7868872 7892520 7958291 8681772 9476720 9836090 10730280 10852215 11575696 11803308 14215080 14469620 14754135 15737744 15785040 15916582 17363544 19672180 21460560 21704430 23606616 23874873 28430160 28939240 29508270 31833164 34727088 39344360 39791455 43408860 47213232 47749746 57878480 59016540 63666328 78688720 79582910 86817720 87541201 95499492 118033080 119374365 127332656 159165820 173635440 175082402 190998984 236066160 238748730 262623603 318331640 350164804 381997968 437706005 477497460 525247206 636663280 700329608 875412010 954994920 1050494412 1313118015 1400659216 1750824020 1909989840 2100988824 2626236030 3501648040 4201977648 5252472060 7003296080 10504944120 21009888240
- Sum of all divisors σ(n): 72541785600
- Sum of proper divisors (its aliquot sum) s(n): 51531897360
- 21009888240 is an abundant number, because the sum of its proper divisors (51531897360) is greater than itself. Its abundance is 30522009120
Bases of 21009888240
- Binary: 100111001000100100101110011111100002
- Hexadecimal: 0x4E44973F0
- Base-36: 9NGQTIO
Squares and roots of 21009888240
- 21009888240 squared (210098882402) is 441415403857290297600
- 21009888240 cubed (210098882403) is 9274088302456134061812340224000
-
The
square root of 21009888240 is 144947.8811159377 -
The
cube root of 21009888240 is 2759.3571386607
Scales and comparisons
How big is 21009888240?- 21,009,888,240 seconds is equal to 668 years, 2 weeks, 4 days, 4 minutes.
-
To count from 1 to 21,009,888,240 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 21009888240 cubic inches would be around 229.9 feet tall.
Recreational maths with 21009888240
- 21009888240 backwards is 04288890012
- The number of decimal digits it has is: 11
- The sum of 21009888240's digits is 42
- More coming soon!
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