21140455140

Names of 21140455140

• Cardinal: 21140455140 can be written as Twenty-one billion, one hundred forty million, four hundred fifty-five thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.114045514 × 10¹⁰

Factors of 21140455140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 695

Divisors of 21140455140

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 49 54 60 63 70 84 90 98 105 108 126 135 140 147 180 189 196 210 245 252 270 294 311 315 343 367 378 420 441 490 540 588 622 630 686 734 735 756 882 933 945 980 1029 1101 1244 1260 1323 1372 1468 1470 1555 1715 1764 1835 1866 1890 2058 2177 2202 2205 2569 2646 2799 2940 3087 3110 3303 3430 3670 3732 3780 4116 4354 4404 4410 4665 5138 5145 5292 5505 5598 6174 6220 6531 6606 6615 6860 7340 7707 8397 8708 8820 9261 9330 9909 10276 10290 10885 11010 11196 12348 12845 13062 13212 13230 13995 15239 15414 15435 16515 16794 17983 18522 18660 19593 19818 20580 21770 22020 23121 25690 26124 26460 27990 30478 30828 30870 32655 33030 33588 35966 37044 38535 39186 39636 41985 43540 45717 46242 46305 49545 51380 53949 55980 58779 60956 61740 65310 66060 69363 71932 76195 77070 78372 83970 89915 91434 92484 92610 97965 99090 106673 107898 114137 115605 117558 125881 130620 137151 138726 152390 154140 161847 167940 179830 182868 185220 195930 198180 213346 215796 228274 228585 231210 235116 251762 269745 274302 277452 293895 304780 320019 323694 342411 346815 359660 377643 391860 411453 426692 456548 457170 462420 485541 503524 533365 539490 548604 570685 587790 629405 640038 647388 684822 685755 693630 755286 798959 809235 822906 914340 960057 971082 1027233 1066730 1078980 1132929 1141370 1175580 1258810 1280076 1369644 1371510 1387260 1510572 1597918 1600095 1618470 1645812 1712055 1888215 1920114 1942164 2054466 2057265 2133460 2265858 2282740 2396877 2427705 2517620 2743020 2880171 3081699 3195836 3200190 3236940 3398787 3424110 3776430 3840228 3994795 4108932 4114530 4531716 4793754 4800285 4855410 5136165 5592713 5664645 5760342 6163398 6400380 6797574 6848220 7190631 7552860 7989590 8229060 9587508 9600570 9710820 10272330 11185426 11329290 11520684 11984385 12326796 13595148 14381262 14400855 15408495 15979180 16778139 16993935 19201140 20544660 21571893 22370852 22658580 23968770 27963565 28762524 28801710 30816990 33556278 33987870 35953155 39148991 43143786 47937540 50334417 55927130 57603420 61633980 67112556 67975740 71906310 78297982 83890695 86287572 100668834 107859465 111854260 117446973 143812620 151003251 156595964 167781390 195744955 201337668 215718930 234893946 251672085 302006502 335562780 352340919 391489910 431437860 469787892 503344170 587234865 604013004 704681838 755016255 782979820 1006688340 1057022757 1174469730 1409363676 1510032510 1761704595 2114045514 2348939460 3020065020 3523409190 4228091028 5285113785 7046818380 10570227570 21140455140
• Sum of all divisors σ(n): 77156352000
• Sum of proper divisors (its aliquot sum) s(n): 56015896860
• 21140455140 is an abundant number, because the sum of its proper divisors (56015896860) is greater than itself. Its abundance is 34875441720

Bases of 21140455140

• Binary: 10011101100000100011011111011100100₂
• Hexadecimal: 0x4EC11BEE4
• Base-36: 9PMHBL0

Squares and roots of 21140455140

• 21140455140 squared (21140455140²) is 446918843526352419600
• 21140455140 cubed (21140455140³) is 9448067762789532734384256744000
• The square root of 21140455140 is 145397.5761145971
• The cube root of 21140455140 is 2765.0613883715

Scales and comparisons

• 21,140,455,140 seconds is equal to 672 years, 10 weeks, 3 days, 4 hours, 39 minutes.
• To count from 1 to 21,140,455,140 would take you about one thousand, three hundred forty-four 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 21140455140 cubic inches would be around 230.4 feet tall.

Recreational maths with 21140455140

• 21140455140 backwards is 04155404112
• 21140455140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21140455140's digits is 27
• More coming soon!