21398022720
21,398,022,720 is an even composite number composed of five prime numbers multiplied together.
21398022720 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 21398022720:
26 × 34 × 5 × 181 × 4561
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 5 × 181 × 4561)See below for interesting mathematical facts about the number 21398022720 from the Numbermatics database.
Names of 21398022720
- Cardinal: 21398022720 can be written as Twenty-one billion, three hundred ninety-eight million, twenty-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.139802272 × 1010
Factors of 21398022720
Divisors of 21398022720
- 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 20 24 27 30 32 36 40 45 48 54 60 64 72 80 81 90 96 108 120 135 144 160 162 180 181 192 216 240 270 288 320 324 360 362 405 432 480 540 543 576 648 720 724 810 864 905 960 1080 1086 1296 1440 1448 1620 1629 1728 1810 2160 2172 2592 2715 2880 2896 3240 3258 3620 4320 4344 4561 4887 5184 5430 5792 6480 6516 7240 8145 8640 8688 9122 9774 10860 11584 12960 13032 13683 14480 14661 16290 17376 18244 19548 21720 22805 24435 25920 26064 27366 28960 29322 32580 34752 36488 39096 41049 43440 45610 48870 52128 54732 57920 58644 65160 68415 72976 73305 78192 82098 86880 91220 97740 104256 109464 117288 123147 130320 136830 145952 146610 156384 164196 173760 182440 195480 205245 218928 234576 246294 260640 273660 291904 293220 312768 328392 364880 369441 390960 410490 437856 469152 492588 521280 547320 586440 615735 656784 729760 738882 781920 820980 825541 875712 938304 985176 1094640 1172880 1231470 1313568 1459520 1477764 1563840 1641960 1651082 1847205 1970352 2189280 2345760 2462940 2476623 2627136 2955528 3283920 3302164 3694410 3940704 4127705 4378560 4691520 4925880 4953246 5911056 6567840 6604328 7388820 7429869 7881408 8255410 9851760 9906492 11822112 12383115 13135680 13208656 14777640 14859738 16510820 19703520 19812984 22289607 23644224 24766230 26417312 29555280 29719476 33021640 37149345 39407040 39625968 44579214 49532460 52834624 59110560 59438952 66043280 66868821 74298690 79251936 89158428 99064920 111448035 118221120 118877904 132086560 133737642 148597380 158503872 178316856 198129840 222896070 237755808 264173120 267475284 297194760 334344105 356633712 396259680 445792140 475511616 534950568 594389520 668688210 713267424 792519360 891584280 1069901136 1188779040 1337376420 1426534848 1783168560 2139802272 2377558080 2674752840 3566337120 4279604544 5349505680 7132674240 10699011360 21398022720
- Sum of all divisors σ(n): 76553845368
- Sum of proper divisors (its aliquot sum) s(n): 55155822648
- 21398022720 is an abundant number, because the sum of its proper divisors (55155822648) is greater than itself. Its abundance is 33757799928
Bases of 21398022720
- Binary: 100111110110110101111101010010000002
- Hexadecimal: 0x4FB6BEA40
- Base-36: 9TVTW00
Squares and roots of 21398022720
- 21398022720 squared (213980227202) is 457875376325636198400
- 21398022720 cubed (213980227203) is 9797627705544513491817627648000
-
The
square root of 21398022720 is 146280.6300232535 -
The
cube root of 21398022720 is 2776.2455883737
Scales and comparisons
How big is 21398022720?- 21,398,022,720 seconds is equal to 680 years, 20 weeks, 2 days, 7 hours, 12 minutes.
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To count from 1 to 21,398,022,720 would take you about one thousand, three hundred sixty 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 21398022720 cubic inches would be around 231.4 feet tall.
Recreational maths with 21398022720
- 21398022720 backwards is 02722089312
- 21398022720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21398022720's digits is 36
- More coming soon!
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