21241374840

Names of 21241374840

• Cardinal: 21241374840 can be written as Twenty-one billion, two hundred forty-one million, three hundred seventy-four thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.124137484 × 10¹⁰

Factors of 21241374840

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2316

Divisors of 21241374840

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 31 35 36 40 42 45 56 60 62 63 70 72 84 90 93 105 120 124 126 127 140 155 168 180 186 210 217 248 252 254 279 280 310 315 360 372 381 420 434 465 504 508 558 620 630 635 651 744 762 840 868 889 930 1016 1085 1116 1143 1240 1260 1270 1302 1395 1524 1736 1778 1860 1905 1953 2141 2170 2232 2286 2520 2540 2604 2667 2790 3048 3255 3556 3720 3810 3906 3937 4282 4340 4445 4572 5080 5208 5334 5580 5715 6423 6510 7112 7620 7812 7874 8001 8564 8680 8890 9144 9765 10668 10705 11160 11430 11811 12846 13020 13335 14987 15240 15624 15748 16002 17128 17780 19269 19530 19685 21336 21410 22860 23622 25692 26040 26670 27559 29974 31496 32004 32115 35433 35560 38538 39060 39370 40005 42820 44961 45720 47244 51384 53340 55118 59055 59948 64008 64230 66371 70866 74935 77076 78120 78740 80010 82677 85640 89922 94488 96345 106680 110236 118110 119896 128460 132742 134883 137795 141732 149870 154152 157480 160020 165354 177165 179844 192690 199113 220472 224805 236220 248031 256920 265484 269766 271907 275590 283464 299740 320040 330708 331855 354330 359688 385380 398226 413385 449610 464597 472440 496062 530968 539532 543814 551180 597339 599480 661416 663710 674415 708660 770760 796452 815721 826770 899220 929194 992124 995565 1079064 1087628 1102360 1194678 1240155 1327420 1348830 1359535 1393791 1417320 1592904 1631442 1653540 1798440 1858388 1903349 1984248 1991130 2175256 2322985 2389356 2447163 2480310 2654840 2697660 2719070 2787582 2986695 3262884 3307080 3716776 3806698 3982260 4078605 4181373 4645970 4778712 4894326 4960620 5395320 5438140 5575164 5710047 5973390 6525768 6968955 7613396 7964520 8157210 8362746 8429117 9291940 9516745 9788652 9921240 10876280 11150328 11420094 11946780 12235815 13937910 15226792 16314420 16725492 16858234 17130141 18583880 19033490 19577304 20906865 22840188 23893560 24471630 25287351 27875820 28550235 32628840 33450984 33716468 34260282 38066980 41813730 42145585 45680376 48943260 50574702 55751640 57100470 59003819 67432936 68520564 75862053 76133960 83627460 84291170 85650705 97886520 101149404 114200940 118007638 126436755 137041128 151724106 167254920 168582340 171301410 177011457 202298808 228401880 236015276 252873510 295019095 303448212 337164680 342602820 354022914 379310265 472030552 505747020 531034371 590038190 606896424 685205640 708045828 758620530 885057285 1011494040 1062068742 1180076380 1416091656 1517241060 1770114570 2124137484 2360152760 2655171855 3034482120 3540229140 4248274968 5310343710 7080458280 10620687420 21241374840
• Sum of all divisors σ(n): 82121195520
• Sum of proper divisors (its aliquot sum) s(n): 60879820680
• 21241374840 is an abundant number, because the sum of its proper divisors (60879820680) is greater than itself. Its abundance is 39638445840

Bases of 21241374840

• Binary: 10011110010000101011010100001111000₂
• Hexadecimal: 0x4F215A878
• Base-36: 9RAKDQ0

Squares and roots of 21241374840

• 21241374840 squared (21241374840²) is 451196005093385025600
• 21241374840 cubed (21241374840³) is 9584023470499140533212595904000
• The square root of 21241374840 is 145744.2103138235
• The cube root of 21241374840 is 2769.4543291239

Scales and comparisons

• 21,241,374,840 seconds is equal to 675 years, 21 weeks, 2 days, 5 hours, 54 minutes.
• To count from 1 to 21,241,374,840 would take you about one thousand, three hundred fifty 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 21241374840 cubic inches would be around 230.8 feet tall.

Recreational maths with 21241374840

• 21241374840 backwards is 04847314212
• 21241374840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21241374840's digits is 36
• More coming soon!