12720538376865

Names of 12720538376865

• Cardinal: 12720538376865 can be written as Twelve trillion, seven hundred twenty billion, five hundred thirty-eight million, three hundred seventy-six thousand, eight hundred sixty-five.

Scientific notation

• Scientific notation: 1.2720538376865 × 10¹³

Factors of 12720538376865

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4609

Divisors of 12720538376865

• Number of divisors d(n): 448
• Complete list of divisors:
  1 3 5 9 11 15 17 19 27 33 45 51 55 57 81 85 95 99 135 153 165 171 187 209 227 243 255 285 297 323 405 459 495 513 561 627 681 729 765 855 891 935 969 1045 1135 1215 1377 1485 1539 1615 1683 1881 2043 2295 2497 2565 2673 2805 2907 3135 3405 3553 3645 3859 4131 4313 4327 4455 4617 4845 5049 5643 6129 6885 7491 7695 8019 8415 8721 9405 10215 10659 11577 12393 12485 12939 12981 13365 13851 14535 15147 16929 17765 18387 19295 20655 21565 21635 22473 23085 25245 26163 28215 30645 31977 34731 37455 38817 38943 40095 42449 43605 45441 47443 47597 50787 53295 55161 57885 61965 64695 64905 67419 69255 73321 73559 75735 78489 82213 84645 91935 95931 104193 112365 116451 116829 127347 130815 136323 142329 142791 152361 159885 165483 173655 194085 194715 202257 212245 219963 220677 227205 235467 237215 237985 246639 253935 275805 287793 312579 337095 349353 350487 366605 367795 382041 392445 411065 426987 428373 479655 520965 582255 584145 606771 636735 659889 662031 681615 711645 713955 739917 761805 806531 809149 827415 863379 904343 937737 982229 1011285 1048059 1051461 1099815 1103385 1146123 1177335 1233195 1280961 1285119 1397621 1438965 1562895 1746765 1752435 1820313 1910205 1979667 1986093 2134935 2141865 2219751 2419593 2427447 2590137 2713029 2813211 2946687 3033855 3144177 3154383 3299445 3310155 3438369 3699585 3842883 3855357 4032655 4045745 4192863 4316895 4521715 4688685 4911145 5240295 5257305 5730615 5939001 5958279 6404805 6425595 6659253 6988105 7258779 7282341 8139087 8840061 9101565 9898335 9930465 10315107 10804519 11098755 11528649 11566071 12097965 12137235 12578589 12950685 13565145 14066055 14733435 15373831 15720885 15771915 16697893 17191845 17817003 17874837 18662351 19214415 19276785 19977759 20964315 21776337 21847023 24417261 26520183 29695005 29791395 30945321 32413557 33296265 34585947 34698213 36293895 36411705 37735767 40695435 44200305 46121493 50093679 51575535 53451009 53624511 54022595 55987053 57643245 57830355 59933277 62892945 65329011 65541069 73251783 76869155 79560549 83489465 89085015 89374185 93311755 97240671 99888795 108881685 109235115 113207301 122086305 132600915 138364479 150281037 154726605 162067785 167961159 172929735 173491065 183676823 188678835 195987033 196623207 205285861 219755349 230607465 238681647 250468395 267255045 268122555 279935265 291722013 299666385 317259967 326645055 327705345 339621903 366258915 397802745 415093437 450843111 486203355 503883477 551030469 566036505 587961099 589869621 615857583 659266047 691822395 716044941 751405185 839805795 875166039 918384115 951779901 979935165 983116035 1018865709 1026429305 1098776745 1193408235 1245280311 1352529333 1458610065 1511650431 1586299835 1653091407 1698109515 1847572749 2075467185 2254215555 2519417385 2625498117 2755152345 2855339703 2939805495 2949348105 3079287915 3296330235 3489859637 3580224705 3735840933 4057587999 4375830195 4534951293 4758899505 4959274221 5094328545 5542718247 6226401555 6762646665 7558252155 7876494351 8265457035 8566019109 9237863745 10469578911 11207522799 12172763997 13127490585 13604853879 14276698515 14877822663 16628154741 17449298185 18679204665 20287939995 22674756465 24796371105 25698057327 27713591235 31408736733 39382471755 42830095545 44633467989 49884464223 52347894555 56037613995 60863819985 68024269395 74389113315 77094171981 83140773705 94226210199 128490286635 133900403967 149653392669 157043683665 223167339945 231282515943 249422321115 282678630597 385470859905 471131050995 669502019835 748266963345 848035891791 1156412579715 1413393152985 2544107675373 4240179458955 12720538376865
• Sum of all divisors σ(n): 27956143319040
• Sum of proper divisors (its aliquot sum) s(n): 15235604942175
• 12720538376865 is an abundant number, because the sum of its proper divisors (15235604942175) is greater than itself. Its abundance is 2515066565310

Bases of 12720538376865

• Binary: 10111001000110111011001010111101101010100001₂
• Hexadecimal: 0xB91BB2BDAA1
• Base-36: 4IBQG4529

Squares and roots of 12720538376865

• 12720538376865 squared (12720538376865²) is 161812096597295248767228225
• 12720538376865 cubed (12720538376865³) is 2058336984606880693302653717446515014625
• The square root of 12720538376865 is 3566586.3759153513
• The cube root of 12720538376865 is 23343.6357265883

Scales and comparisons

• 12,720,538,376,865 seconds is equal to 404,473 years, 40 weeks, 1 day, 10 hours, 27 minutes, 45 seconds.
• To count from 1 to 12,720,538,376,865 would take you about one million, eleven thousand, one hundred eighty-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 12720538376865 cubic inches would be around 1945.3 feet tall.

Recreational maths with 12720538376865

• 12720538376865 backwards is 56867383502721
• The number of decimal digits it has is: 14
• The sum of 12720538376865's digits is 63
• More coming soon!