21008291384160

Names of 21008291384160

• Cardinal: 21008291384160 can be written as Twenty-one trillion, eight billion, two hundred ninety-one million, three hundred eighty-four thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.100829138416 × 10¹³

Factors of 21008291384160

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 29357

Divisors of 21008291384160

• Number of divisors d(n): 384
• 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 72 79 80 90 96 108 120 135 144 158 160 180 216 237 240 270 288 316 360 395 432 474 480 540 632 711 720 790 864 948 1080 1185 1264 1422 1440 1580 1896 2133 2160 2281 2370 2528 2844 3160 3555 3792 4266 4320 4562 4740 5688 6320 6843 7110 7584 8532 9124 9480 10665 11376 11405 12640 13686 14220 17064 18248 18960 20529 21330 22752 22810 26987 27372 28440 34128 34215 36496 37920 41058 42660 45620 53974 54744 56880 61587 68256 68430 72992 80961 82116 85320 91240 102645 107948 109488 113760 123174 134935 136860 161922 164232 170640 180199 182480 205290 215896 218976 242883 246348 269870 273720 307935 323844 328464 341280 360398 364960 404805 410580 431792 485766 492696 539740 540597 547440 615870 647688 656928 720796 728649 809610 821160 863584 900995 971532 985392 1079480 1081194 1094880 1214415 1231740 1295376 1441592 1457298 1619220 1621791 1642320 1801990 1943064 1970784 2131973 2158960 2162388 2428830 2463480 2590752 2702985 2883184 2914596 3238440 3243582 3284640 3603980 3643245 3886128 4263946 4317920 4324776 4857660 4865373 4926960 5405970 5766368 5829192 6395919 6476880 6487164 7207960 7286490 7772256 8108955 8527892 8649552 9715320 9730746 9853920 10659865 10811940 11658384 12791838 12953760 12974328 14415920 14572980 16217910 17055784 17299104 19187757 19430640 19461492 21319730 21623880 23316768 24326865 25583676 25948656 28831840 29145960 31979595 32435820 34111568 38375514 38861280 38922984 42639460 43247760 48653730 51167352 51897312 57563271 58291920 61557347 63959190 64871640 68223136 76751028 77845968 85278920 86495520 95938785 97307460 102334704 115126542 116583840 123114694 127918380 129743280 153502056 155691936 170557840 184672041 191877570 194614920 204669408 230253084 246229388 255836760 259486560 287816355 307004112 307786735 341115680 369344082 383755140 389229840 460506168 492458776 511673520 554016123 575632710 614008224 615573470 738688164 767510280 778459680 921012336 923360205 984917552 1023347040 1108032246 1151265420 1231146940 1477376328 1535020560 1662048369 1842024672 1846720410 1969835104 2216064492 2302530840 2462293880 2770080615 2954752656 3070041120 3324096738 3693440820 4432128984 4605061680 4863030413 4924587760 5540161230 5909505312 6648193476 7386881640 8310241845 8864257968 9210123360 9726060826 9849175520 11080322460 13296386952 14589091239 14773763280 16620483690 17728515936 19452121652 22160644920 24315152065 26592773904 29178182478 29547526560 33240967380 38904243304 43767273717 44321289840 48630304130 53185547808 58356364956 66481934760 72945456195 77808486608 87534547434 88642579680 97260608260 116712729912 131301821151 132963869520 145890912390 155616973216 175069094868 194521216520 218836368585 233425459824 262603642302 265927739040 291781824780 350138189736 389042433040 437672737170 466850919648 525207284604 583563649560 656509105755 700276379472 778084866080 875345474340 1050414569208 1167127299120 1313018211510 1400552758944 1750690948680 2100829138416 2334254598240 2626036423020 3501381897360 4201658276832 5252072846040 7002763794720 10504145692080 21008291384160
• Sum of all divisors σ(n): 74495170713600
• Sum of proper divisors (its aliquot sum) s(n): 53486879329440
• 21008291384160 is an abundant number, because the sum of its proper divisors (53486879329440) is greater than itself. Its abundance is 32478587945280

Bases of 21008291384160

• Binary: 100110001101101011111101111101100101101100000₂
• Hexadecimal: 0x131B5FBECB60
• Base-36: 7G32Q9SO0

Squares and roots of 21008291384160

• 21008291384160 squared (21008291384160²) is 441348306881771288698905600
• 21008291384160 cubed (21008291384160³) is 9271973832877919400132878492901175296000
• The square root of 21008291384160 is 4583480.2698560839
• The cube root of 21008291384160 is 27592.8722860769

Scales and comparisons

• 21,008,291,384,160 seconds is equal to 667,998 years, 35 weeks, 3 days, 15 hours, 36 minutes.
• To count from 1 to 21,008,291,384,160 would take you about one million, six hundred sixty-nine thousand, nine hundred ninety-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 21008291384160 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21008291384160

• 21008291384160 backwards is 06148319280012
• 21008291384160 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21008291384160's digits is 45
• More coming soon!