28999812687840

Names of 28999812687840

• Cardinal: 28999812687840 can be written as Twenty-eight trillion, nine hundred ninety-nine billion, eight hundred twelve million, six hundred eighty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.899981268784 × 10¹³

Factors of 28999812687840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4803

Divisors of 28999812687840

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 29 30 31 32 36 40 45 48 58 60 62 72 80 87 90 93 96 116 120 124 144 145 155 160 174 180 186 232 240 248 261 279 288 290 310 348 360 372 435 464 465 480 496 522 558 580 620 696 720 744 870 899 928 930 992 1044 1116 1160 1240 1305 1392 1395 1440 1488 1740 1798 1860 2088 2232 2320 2480 2610 2697 2784 2790 2976 3480 3596 3720 4176 4464 4495 4640 4733 4960 5220 5394 5580 6960 7192 7440 8091 8352 8928 8990 9466 10440 10788 11160 13485 13920 14199 14384 14880 16182 17980 18932 20880 21576 22320 23665 26970 28398 28768 32364 35960 37864 40455 41760 42597 43152 44640 47330 53940 56796 64728 70995 71920 75728 80910 85194 86304 94660 107880 113592 129456 137257 141990 143840 146723 151456 161820 170388 189320 212985 215760 227184 258912 274514 283980 293446 323640 340776 378640 411771 425970 431520 440169 454368 549028 567960 586892 647280 681552 686285 733615 757280 823542 851940 880338 1098056 1135920 1173784 1235313 1294560 1320507 1363104 1372570 1467230 1647084 1703880 1760676 2058855 2196112 2200845 2271840 2347568 2470626 2641014 2745140 2934460 3294168 3407760 3521352 4117710 4254967 4392224 4401690 4695136 4941252 5282028 5490280 5868920 6176565 6588336 6602535 6815520 7042704 8235420 8509934 8803380 9882504 10564056 10980560 11737840 12353130 12764901 13176672 13205070 14085408 16470840 17019868 17606760 19765008 21128112 21274835 21961120 22401289 23475680 24706260 25529802 26410140 32941680 34039736 35213520 38294703 39530016 42256224 42549670 44802578 49412520 51059604 52820280 63824505 65883360 67203867 68079472 70427040 76589406 85099340 89605156 98825040 102119208 105640560 112006445 127649010 134407734 136158944 153178812 170198680 179210312 191473515 197650080 201611601 204238416 211281120 224012890 255298020 268815468 306357624 336019335 340397360 358420624 382947030 403223202 408476832 448025780 510596040 537630936 612715248 649637381 672038670 680794720 694439959 716841248 765894060 806446404 896051560 1008058005 1021192080 1075261872 1225430496 1299274762 1344077340 1388879918 1531788120 1612892808 1792103120 1948912143 2016116010 2042384160 2083319877 2150523744 2598549524 2688154680 2777759836 3063576240 3225785616 3248186905 3472199795 3584206240 3897824286 4032232020 4166639754 5197099048 5376309360 5555519672 5846736429 6127152480 6249959631 6451571232 6496373810 6944399590 7795648572 8064464040 8333279508 9744560715 10394198096 10416599385 10752618720 11111039344 11693472858 12499919262 12992747620 13888799180 15591297144 16128928080 16666559016 19489121430 20138758811 20788396192 20833198770 22222078688 23386945716 24999838524 25985495240 27777598360 29233682145 31182594288 31249798155 32257856160 33333118032 38978242860 40277517622 41666397540 46773891432 49999677048 51970990480 55555196720 58467364290 60416276433 62365188576 62499596310 66666236064 77956485720 80555035244 83332795080 93547782864 99999354096 100693794055 103941980960 111110393440 116934728580 120832552866 124999192620 155912971440 161110070488 166665590160 181248829299 187095565728 199998708192 201387588110 233869457160 241665105732 249998385240 302081382165 311825942880 322220140976 333331180320 362497658598 402775176220 467738914320 483330211464 499996770480 604162764330 644440281952 724995317196 805550352440 906244146495 935477828640 966660422928 999993540960 1208325528660 1449990634392 1611100704880 1812488292990 1933320845856 2416651057320 2899981268784 3222201409760 3624976585980 4833302114640 5799962537568 7249953171960 9666604229280 14499906343920 28999812687840
• Sum of all divisors σ(n): 105699069141120
• Sum of proper divisors (its aliquot sum) s(n): 76699256453280
• 28999812687840 is an abundant number, because the sum of its proper divisors (76699256453280) is greater than itself. Its abundance is 47699443765440

Bases of 28999812687840

• Binary: 110100110000000001011100010001010011111100000₂
• Hexadecimal: 0x1A600B88A7E0
• Base-36: AA2BVPYW0

Squares and roots of 28999812687840

• 28999812687840 squared (28999812687840²) is 840989135929805845283865600
• 28999812687840 cubed (28999812687840³) is 24388527414472781967690841653321314304000
• The square root of 28999812687840 is 5385147.4156089729
• The cube root of 28999812687840 is 30723.1021093251

Scales and comparisons

• 28,999,812,687,840 seconds is equal to 922,104 years, 17 weeks, 5 days, 4 hours, 24 minutes.
• To count from 1 to 28,999,812,687,840 would take you about two million, three hundred five thousand, two hundred sixty 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 28999812687840 cubic inches would be around 2560.3 feet tall.

Recreational maths with 28999812687840

• 28999812687840 backwards is 04878621899982
• The number of decimal digits it has is: 14
• The sum of 28999812687840's digits is 81
• More coming soon!