12917478420

Names of 12917478420

• Cardinal: 12917478420 can be written as Twelve billion, nine hundred seventeen million, four hundred seventy-eight thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.291747842 × 10¹⁰

Factors of 12917478420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 660

Divisors of 12917478420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 44 45 55 60 63 66 70 77 84 90 99 105 110 121 126 132 140 154 165 180 193 198 210 220 231 242 252 308 315 330 363 385 386 396 420 439 462 484 495 579 605 630 660 693 726 770 772 847 878 924 965 990 1089 1155 1158 1210 1260 1317 1351 1386 1452 1540 1694 1737 1756 1815 1930 1980 2123 2178 2195 2310 2316 2420 2541 2634 2702 2772 2895 3073 3388 3465 3474 3630 3860 3951 4053 4235 4246 4356 4390 4620 4829 5082 5268 5404 5445 5790 6146 6369 6585 6755 6930 6948 7260 7623 7902 8106 8470 8492 8685 8780 9219 9658 10164 10615 10890 11580 12159 12292 12705 12738 13170 13510 13860 14487 14861 15246 15365 15804 16212 16940 17370 18438 19107 19316 19755 20265 21230 21780 23353 24145 24318 25410 25476 26340 27020 27657 28974 29722 30492 30730 31845 33803 34740 36876 38115 38214 39510 40530 42460 43461 44583 46095 46706 48290 48636 50820 53119 55314 57948 59444 60795 61460 63690 67606 70059 72435 74305 76230 76428 79020 81060 84727 86922 89166 92190 93412 95535 96580 101409 106238 110628 116765 121590 127380 133749 135212 138285 140118 144870 148610 152460 159357 163471 169015 169454 173844 178332 184380 191070 202818 210177 212476 217305 222915 233530 243180 254181 265595 267498 276570 280236 289740 297220 304227 318714 326942 338030 338908 350295 371833 382140 405636 420354 423635 434610 445830 467060 478071 490413 507045 508362 531190 534996 553140 593089 608454 637428 653884 668745 676060 700590 743666 762543 796785 817355 840708 847270 869220 891660 931997 956142 980826 1014090 1016724 1050885 1062380 1115499 1186178 1216908 1270905 1337490 1401180 1471239 1487332 1521135 1525086 1593570 1634710 1694540 1779267 1859165 1863994 1912284 1961652 2028180 2101770 2230998 2372356 2390355 2452065 2541810 2674980 2795991 2942478 2965445 3042270 3050172 3187140 3269420 3346497 3558534 3718330 3727988 3812715 4203540 4461996 4659985 4780710 4904130 5083620 5337801 5577495 5591982 5884956 5930890 6084540 6523979 6692994 7117068 7356195 7436660 7625430 8387973 8896335 9319970 9561420 9808260 10251967 10675602 11154990 11183964 11861780 13047958 13385988 13979955 14712390 15250860 16732485 16775946 17792670 18639940 19571937 20503934 21351204 22309980 26095916 26689005 27959910 29424780 30755901 32619895 33464970 33551892 35585340 39143874 41007868 41939865 51259835 53378010 55919820 58715811 61511802 65239790 66929940 71763769 78287748 83879730 92267703 97859685 102519670 106756020 117431622 123023604 130479580 143527538 153779505 167759460 184535406 195719370 205039340 215291307 234863244 287055076 293579055 307559010 358818845 369070812 391438740 430582614 461338515 587158110 615118020 645873921 717637690 861165228 922677030 1076456535 1174316220 1291747842 1435275380 1845354060 2152913070 2583495684 3229369605 4305826140 6458739210 12917478420
• Sum of all divisors σ(n): 49589379840
• Sum of proper divisors (its aliquot sum) s(n): 36671901420
• 12917478420 is an abundant number, because the sum of its proper divisors (36671901420) is greater than itself. Its abundance is 23754423000

Bases of 12917478420

• Binary: 1100000001111100010001010000010100₂
• Hexadecimal: 0x301F11414
• Base-36: 5XMQE50

Squares and roots of 12917478420

• 12917478420 squared (12917478420²) is 166861248731165696400
• 12917478420 cubed (12917478420³) is 2155426579619085264691271688000
• The square root of 12917478420 is 113655.0853239749
• The cube root of 12917478420 is 2346.3488447615

Scales and comparisons

• 12,917,478,420 seconds is equal to 410 years, 38 weeks, 1 day, 20 hours, 27 minutes.
• To count from 1 to 12,917,478,420 would take you about eight hundred twenty-one 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 12917478420 cubic inches would be around 195.5 feet tall.

Recreational maths with 12917478420

• 12917478420 backwards is 02487471921
• 12917478420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12917478420's digits is 45
• More coming soon!