21349249740

Names of 21349249740

• Cardinal: 21349249740 can be written as Twenty-one billion, three hundred forty-nine million, two hundred forty-nine thousand, seven hundred forty.

Scientific notation

• Scientific notation: 2.134924974 × 10¹⁰

Factors of 21349249740

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1873

Divisors of 21349249740

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 13 14 15 17 18 20 21 26 28 30 34 35 36 39 42 43 45 51 52 60 63 65 68 70 78 84 85 86 90 91 102 105 117 119 126 129 130 140 153 156 170 172 180 182 195 204 210 215 221 234 238 252 255 258 260 273 301 306 315 340 357 364 387 390 420 430 442 455 468 476 510 516 546 559 585 595 602 612 630 645 663 714 731 765 774 780 819 860 884 903 910 1020 1071 1092 1105 1118 1170 1190 1204 1260 1290 1326 1365 1428 1462 1505 1530 1547 1548 1638 1677 1783 1785 1806 1820 1935 1989 2142 2193 2210 2236 2340 2380 2580 2652 2709 2730 2795 2924 3010 3060 3094 3276 3315 3354 3566 3570 3612 3655 3870 3913 3978 4095 4284 4386 4420 4515 4641 5031 5117 5349 5355 5418 5460 5590 6020 6188 6579 6630 6708 7132 7140 7310 7735 7740 7826 7956 8190 8385 8772 8915 9030 9282 9503 9945 10062 10234 10698 10710 10836 10965 11180 11739 12481 13158 13260 13545 13923 14620 15351 15470 15652 16047 16380 16770 17830 18060 18564 19006 19565 19890 20124 20468 21396 21420 21930 23179 23205 23478 24962 25155 25585 26316 26745 27090 27846 28509 30311 30702 30940 32094 32895 33540 35217 35660 37443 38012 39130 39780 43860 46053 46358 46410 46956 47515 49924 50310 51170 53490 54180 55692 57018 58695 60622 61404 62405 64188 65790 66521 69537 69615 70434 74886 76669 76755 78260 80235 85527 90933 92106 92716 92820 95030 100620 102340 106980 112329 114036 115895 117390 121244 124810 131580 133042 139074 139230 140868 142545 149772 151555 153338 153510 160470 162253 171054 176085 181866 184212 187215 190060 199563 208611 212177 224658 230007 230265 231790 234780 249620 266084 272799 278148 278460 285090 303110 306676 307020 320940 324506 332605 342108 347685 352170 363732 374430 383345 394043 399126 417222 424354 427635 449316 454665 460014 460530 463580 486759 536683 545598 561645 570180 598689 606220 636531 649012 665210 690021 695370 704340 748860 766690 788086 798252 811265 834444 848708 855270 909330 920028 921060 973518 996697 997815 1043055 1060885 1073366 1091196 1123290 1150035 1182129 1197378 1273062 1303373 1330420 1363995 1380042 1390740 1460277 1533380 1576172 1610049 1622530 1710540 1818660 1909593 1947036 1970215 1993394 1995630 2086110 2121770 2146732 2246580 2300070 2364258 2394756 2433795 2546124 2606746 2683415 2727990 2758301 2760084 2920554 2990091 2993445 3182655 3220098 3245060 3450105 3546387 3819186 3910119 3940430 3986788 3991260 4172220 4243540 4600140 4728516 4830147 4867590 4983485 5213492 5366830 5455980 5516602 5841108 5910645 5980182 5986890 6365310 6440196 6516865 6900210 6976879 7092774 7301385 7638372 7820238 7880860 8050245 8274903 8970273 9123611 9547965 9660294 9735180 9966970 10733660 11033204 11730357 11821290 11960364 11973780 12730620 13033730 13791505 13800420 13953758 14185548 14602770 14950455 15640476 16100490 16549806 16943849 17731935 17940546 18247222 19095930 19320588 19550595 19933940 20930637 23460714 23642580 24150735 24824709 26067460 27370833 27583010 27907516 29205540 29900910 32200980 33099612 33887698 34884395 35463870 35881092 36494444 38191860 39101190 41374515 41861274 44851365 45618055 46921428 48301470 49649418 50831547 54741666 55166020 58651785 59801820 62791911 67775396 69768790 70927740 78202380 82112499 82749030 83722548 84719245 89702730 91236110 96602940 99298836 101663094 104653185 109483332 117303570 118606943 124123545 125583822 136854165 139537580 152494641 164224998 165498060 169438490 179405460 182472220 203326188 209306370 234607140 237213886 248247090 251167644 254157735 273708330 304989282 313959555 328449996 338876980 355820829 410562495 418612740 474427772 496494180 508315470 547416660 593034715 609978564 627919110 711641658 762473205 821124990 1016630940 1067462487 1186069430 1255838220 1423283316 1524946410 1642249980 1779104145 2134924974 2372138860 3049892820 3558208290 4269849948 5337312435 7116416580 10674624870 21349249740
• Sum of all divisors σ(n): 86403373056
• Sum of proper divisors (its aliquot sum) s(n): 65054123316
• 21349249740 is an abundant number, because the sum of its proper divisors (65054123316) is greater than itself. Its abundance is 43704873576

Bases of 21349249740

• Binary: 10011111000100000111011001011001100₂
• Hexadecimal: 0x4F883B2CC
• Base-36: 9T2SIJ0

Squares and roots of 21349249740

• 21349249740 squared (21349249740²) is 455790464460890067600
• 21349249740 cubed (21349249740³) is 9730784454886136515877882424000
• The square root of 21349249740 is 146113.8246026023
• The cube root of 21349249740 is 2774.1346646905

Scales and comparisons

• 21,349,249,740 seconds is equal to 678 years, 43 weeks, 4 days, 19 hours, 9 minutes.
• To count from 1 to 21,349,249,740 would take you about one thousand, three hundred fifty-seven 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 21349249740 cubic inches would be around 231.2 feet tall.

Recreational maths with 21349249740

• 21349249740 backwards is 04794294312
• 21349249740 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21349249740's digits is 45
• More coming soon!