28642589820

Names of 28642589820

• Cardinal: 28642589820 can be written as Twenty-eight billion, six hundred forty-two million, five hundred eighty-nine thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.864258982 × 10¹⁰

Factors of 28642589820

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 877

Divisors of 28642589820

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 43 45 52 54 60 65 78 81 86 90 108 117 129 130 135 156 162 169 172 180 195 215 234 243 258 260 270 324 338 351 387 390 405 430 468 486 507 516 540 559 585 645 676 702 774 780 810 811 845 860 972 1014 1053 1118 1161 1170 1215 1290 1404 1521 1548 1620 1622 1677 1690 1755 1935 2028 2106 2236 2322 2340 2430 2433 2535 2580 2795 3042 3159 3244 3354 3380 3483 3510 3870 4055 4212 4563 4644 4860 4866 5031 5070 5265 5590 5805 6084 6318 6708 6966 7020 7267 7299 7605 7740 8110 8385 9126 9732 10062 10140 10449 10530 10543 11180 11610 12165 12636 13689 13932 14534 14598 15093 15210 15795 16220 16770 17415 18252 20124 20898 21060 21086 21801 21897 22815 23220 24330 25155 27378 29068 29196 30186 30420 31590 31629 33540 34830 34873 36335 36495 41067 41796 42172 43602 43794 45279 45630 48660 50310 52245 52715 54756 60372 63180 63258 65403 65691 68445 69660 69746 72670 72990 75465 82134 87204 87588 90558 91260 94887 100620 104490 104619 105430 109005 109485 126516 130806 131382 135837 136890 137059 139492 145340 145980 150930 158145 164268 174365 181116 189774 196209 197073 205335 208980 209238 210860 218010 218970 226395 261612 262764 271674 273780 274118 284661 301860 313857 316290 327015 328455 348730 379548 392418 394146 410670 411177 418476 436020 437940 452790 453349 474435 523095 543348 548236 569322 588627 627714 632580 654030 656910 679185 685295 697460 784836 788292 821340 822354 853983 905580 906698 941571 948870 981045 985365 1046190 1138644 1177254 1233531 1255428 1308060 1313820 1358370 1360047 1370590 1423305 1569285 1644708 1707966 1765881 1813396 1883142 1897740 1962090 1970730 2055885 2092380 2266745 2354508 2467062 2561949 2716740 2720094 2741180 2824713 2846610 2943135 3138570 3415932 3531762 3700593 3766284 3924180 3941460 4080141 4111770 4269915 4533490 4707855 4934124 5123898 5440188 5649426 5693220 5886270 5893537 6167655 6277140 6800235 7063524 7401186 8160282 8223540 8474139 8539830 8829405 9066980 9415710 10247796 11101779 11298852 11772540 11787074 12240423 12335310 12809745 13600470 14123565 14802372 16320564 16948278 17079660 17658810 17680611 18502965 18831420 20400705 22203558 23574148 24480846 24670620 25619490 27200940 28247130 29467685 33305337 33896556 35317620 35361222 36721269 37005930 40801410 42370695 44407116 48961692 51238980 53041833 55508895 56494260 58935370 61202115 66610674 70722444 73442538 74011860 81602820 84741390 88403055 106083666 110163807 111017790 117870740 122404230 133221348 146885076 159125499 166526685 169482780 176806110 183606345 212167332 220327614 222035580 244808460 265209165 318250998 333053370 353612220 367212690 440655228 477376497 530418330 550819035 636501996 666106740 734425380 795627495 954752994 1060836660 1101638070 1432129491 1591254990 1909505988 2203276140 2386882485 2864258982 3182509980 4773764970 5728517964 7160647455 9547529940 14321294910 28642589820
• Sum of all divisors σ(n): 99956368512
• Sum of proper divisors (its aliquot sum) s(n): 71313778692
• 28642589820 is an abundant number, because the sum of its proper divisors (71313778692) is greater than itself. Its abundance is 42671188872

Bases of 28642589820

• Binary: 11010101011001110110011110001111100₂
• Hexadecimal: 0x6AB3B3C7C
• Base-36: D5P23R0

Squares and roots of 28642589820

• 28642589820 squared (28642589820²) is 820397951596767632400
• 28642589820 cubed (28642589820³) is 23498322016754429332685742168000
• The square root of 28642589820 is 169241.2178519169
• The cube root of 28642589820 is 3059.6430379455

Scales and comparisons

• 28,642,589,820 seconds is equal to 910 years, 38 weeks, 5 days, 10 hours, 57 minutes.
• To count from 1 to 28,642,589,820 would take you about one thousand, 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 28642589820 cubic inches would be around 255 feet tall.

Recreational maths with 28642589820

• 28642589820 backwards is 02898524682
• 28642589820 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28642589820's digits is 54
• More coming soon!