21168439040

Names of 21168439040

• Cardinal: 21168439040 can be written as Twenty-one billion, one hundred sixty-eight million, four hundred thirty-nine thousand and forty.

Scientific notation

• Scientific notation: 2.116843904 × 10¹⁰

Factors of 21168439040

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 271

Divisors of 21168439040

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 43 47 49 56 64 70 80 86 94 98 112 128 140 160 167 172 188 196 215 224 235 245 256 280 301 320 329 334 344 376 392 430 448 470 490 560 602 640 658 668 688 752 784 835 860 896 940 980 1120 1169 1204 1280 1316 1336 1376 1504 1505 1568 1645 1670 1720 1792 1880 1960 2021 2107 2240 2303 2338 2408 2632 2672 2752 3008 3010 3136 3290 3340 3440 3760 3920 4042 4214 4480 4606 4676 4816 5264 5344 5504 5845 6016 6020 6272 6580 6680 6880 7181 7520 7840 7849 8084 8183 8428 8960 9212 9352 9632 10105 10528 10535 10688 11008 11515 11690 12032 12040 12544 13160 13360 13760 14147 14362 15040 15680 15698 16168 16366 16856 18424 18704 19264 20210 21056 21070 21376 23030 23380 24080 26320 26720 27520 28294 28724 30080 31360 31396 32336 32732 33712 35905 36848 37408 38528 39245 40420 40915 42112 42140 42752 46060 46760 48160 50267 52640 53440 54943 55040 56588 57448 60160 62720 62792 64672 65464 67424 70735 71810 73696 74816 77056 78490 80840 81830 84224 84280 92120 93520 96320 99029 100534 105280 106880 109886 113176 114896 125584 129344 130928 134848 141470 143620 147392 149632 156980 161680 163660 168560 184240 187040 192640 198058 201068 210560 213760 219772 226352 229792 251168 251335 258688 261856 269696 274715 282940 287240 294784 299264 313960 323360 327320 337120 337507 351869 368480 374080 384601 385280 396116 402136 421120 439544 452704 459584 495145 502336 502670 517376 523712 539392 549430 565880 574480 589568 627920 646720 654640 674240 675014 703738 736960 748160 769202 792232 804272 879088 905408 919168 990290 1004672 1005340 1047424 1098860 1131760 1148960 1255840 1293440 1309280 1348480 1350028 1407476 1473920 1496320 1538404 1584464 1608544 1687535 1758176 1759345 1810816 1838336 1923005 1980580 2009344 2010680 2094848 2197720 2263520 2297920 2362549 2511680 2586880 2618560 2696960 2700056 2814952 2947840 3076808 3168928 3217088 3375070 3516352 3518690 3621632 3846010 3961160 4021360 4395440 4527040 4595840 4725098 5023360 5237120 5400112 5629904 6153616 6337856 6434176 6750140 7032704 7037380 7692020 7922320 8042720 8790880 9054080 9191680 9450196 10046720 10474240 10800224 11259808 11812745 12307232 12675712 12868352 13500280 14065408 14074760 15384040 15844640 16085440 16537843 17581760 18108160 18900392 21600448 22519616 23625490 24614464 25351424 27000560 28149520 30768080 31689280 32170880 33075686 35163520 37800784 43200896 45039232 47250980 49228928 54001120 56299040 61536160 63378560 64341760 66151372 70327040 75601568 82689215 86401792 90078464 94501960 98457856 108002240 112598080 123072320 126757120 132302744 151203136 165378430 189003920 216004480 225196160 246144640 264605488 302406272 330756860 378007840 432008960 450392320 492289280 529210976 604812544 661513720 756015680 1058421952 1323027440 1512031360 2116843904 2646054880 3024062720 4233687808 5292109760 10584219520 21168439040
• Sum of all divisors σ(n): 62008353792
• Sum of proper divisors (its aliquot sum) s(n): 40839914752
• 21168439040 is an abundant number, because the sum of its proper divisors (40839914752) is greater than itself. Its abundance is 19671475712

Bases of 21168439040

• Binary: 10011101101101111001011111100000000₂
• Hexadecimal: 0x4EDBCBF00
• Base-36: 9Q3543K

Squares and roots of 21168439040

• 21168439040 squared (21168439040²) is 448102811390196121600
• 21168439040 cubed (21168439040³) is 9485637046565984253734027264000
• The square root of 21168439040 is 145493.7766366659
• The cube root of 21168439040 is 2766.2808998757

Scales and comparisons

• 21,168,439,040 seconds is equal to 673 years, 4 weeks, 5 days, 1 hour, 57 minutes, 20 seconds.
• To count from 1 to 21,168,439,040 would take you about one thousand, three hundred forty-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 21168439040 cubic inches would be around 230.5 feet tall.

Recreational maths with 21168439040

• 21168439040 backwards is 04093486112
• The number of decimal digits it has is: 11
• The sum of 21168439040's digits is 38
• More coming soon!