28135081728

Names of 28135081728

• Cardinal: 28135081728 can be written as Twenty-eight billion, one hundred thirty-five million, eighty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.8135081728 × 10¹⁰

Factors of 28135081728

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 167

Divisors of 28135081728

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 29 32 36 39 48 52 54 58 59 61 64 72 78 81 87 96 104 108 116 117 118 122 128 144 156 162 174 177 183 192 208 216 232 234 236 244 256 261 288 312 324 348 351 354 366 377 384 416 432 464 468 472 488 522 531 549 576 624 648 696 702 708 732 754 767 768 783 793 832 864 928 936 944 976 1044 1053 1062 1098 1131 1152 1248 1296 1392 1404 1416 1464 1508 1534 1566 1586 1593 1647 1664 1711 1728 1769 1856 1872 1888 1952 2088 2106 2124 2196 2262 2301 2304 2349 2379 2496 2592 2784 2808 2832 2928 3016 3068 3132 3172 3186 3294 3328 3393 3422 3456 3538 3599 3712 3744 3776 3904 4176 4212 4248 4392 4524 4602 4698 4758 4779 4941 4992 5133 5184 5307 5568 5616 5664 5856 6032 6136 6264 6344 6372 6588 6786 6844 6903 6912 7076 7137 7198 7424 7488 7552 7808 8352 8424 8496 8784 9048 9204 9396 9516 9558 9882 9984 10179 10266 10368 10614 10797 11136 11232 11328 11712 12064 12272 12528 12688 12744 13176 13572 13688 13806 14152 14274 14396 14976 15104 15399 15616 15921 16704 16848 16992 17568 18096 18408 18792 19032 19116 19764 20358 20532 20709 20736 21228 21411 21594 22243 22272 22464 22656 22997 23424 24128 24544 25056 25376 25488 26352 27144 27376 27612 28304 28548 28792 29952 30537 30798 31842 32391 33408 33696 33984 35136 36192 36816 37584 38064 38232 39528 40716 41064 41418 42456 42822 43188 44486 44928 45312 45994 46197 46787 46848 47763 48256 49088 50112 50752 50976 52704 54288 54752 55224 56608 57096 57584 61074 61596 62127 63684 64233 64782 66729 66816 67392 67968 68991 70272 72384 73632 75168 76128 76464 79056 81432 82128 82836 84912 85644 86376 88972 89856 91988 92394 93574 95526 96512 97173 98176 100224 101504 101952 104371 105408 108576 109504 110448 113216 114192 115168 122148 123192 124254 127368 128466 129564 133458 134784 135936 137982 138591 140361 140544 143289 144768 147264 150336 152256 152928 158112 162864 164256 165672 169824 171288 172752 177944 183976 184788 187148 191052 194346 196352 200187 200448 203008 203904 206973 208742 210816 217152 219008 220896 226432 228384 230336 244296 246384 248508 254736 256932 259128 266916 269568 275964 277182 280722 286578 289536 291519 294528 300672 304512 305856 313113 316224 325728 328512 331344 339648 342576 345504 355888 367952 369576 374296 382104 388692 400374 407808 413946 417484 421083 421632 434304 438016 441792 452864 456768 460672 488592 492768 497016 509472 513864 518256 533832 551928 554364 561444 573156 583038 589056 600561 601344 609024 611712 620919 626226 632448 651456 657024 662688 679296 685152 691008 711776 735904 739152 748592 764208 777384 800748 827892 834968 842166 868608 883584 913536 921344 939339 977184 985536 994032 1018944 1027728 1036512 1067664 1103856 1108728 1122888 1146312 1166076 1201122 1223424 1241838 1252452 1263249 1264896 1302912 1314048 1325376 1356823 1358592 1370304 1382016 1423552 1471808 1478304 1497184 1528416 1554768 1601496 1655784 1669936 1684332 1767168 1801683 1827072 1862757 1878678 1954368 1971072 1988064 2037888 2055456 2073024 2135328 2207712 2217456 2245776 2292624 2332152 2402244 2483676 2504904 2526498 2605824 2650752 2713646 2740608 2764032 2818017 2847104 2943616 2956608 2994368 3056832 3109536 3202992 3311568 3339872 3368664 3603366 3725514 3757356 3789747 3908736 3942144 3976128 4070469 4075776 4110912 4146048 4270656 4415424 4434912 4491552 4585248 4664304 4804488 4967352 5009808 5052996 5301504 5427292 5481216 5636034 5694208 5887232 5913216 5988736 6113664 6219072 6405984 6623136 6679744 6737328 7206732 7451028 7514712 7579494 7817472 7952256 8140938 8221824 8292096 8454051 8541312 8830848 8869824 8983104 9170496 9328608 9608976 9934704 10019616 10105992 10854584 11272068 11826432 11977472 12211407 12227328 12438144 12811968 13246272 13359488 13474656 14413464 14902056 15029424 15158988 15904512 16281876 16443648 16908102 17082624 17661696 17739648 17966208 18340992 18657216 19217952 19869408 20039232 20211984 21709168 22544136 24422814 24876288 25623936 26492544 26718976 26949312 28826928 29804112 30058848 30317976 32563752 33816204 35479296 35932416 36634221 36681984 37314432 38435904 39738816 40078464 40423968 43418336 45088272 48845628 51247872 52985088 53898624 57653856 59608224 60117696 60635952 65127504 67632408 73268442 74628864 76871808 79477632 80156928 80847936 86836672 90176544 97691256 107797248 109902663 115307712 119216448 120235392 121271904 130255008 135264816 146536884 153743616 158955264 161695872 173673344 180353088 195382512 219805326 230615424 238432896 240470784 242543808 260510016 270529632 293073768 323391744 347346688 360706176 390765024 439610652 461230848 476865792 485087616 521020032 541059264 586147536 721412352 781530048 879221304 970175232 1042040064 1082118528 1172295072 1563060096 1758442608 2164237056 2344590144 3126120192 3516885216 4689180288 7033770432 9378360576 14067540864 28135081728
• Sum of all divisors σ(n): 96604754400
• Sum of proper divisors (its aliquot sum) s(n): 68469672672
• 28135081728 is an abundant number, because the sum of its proper divisors (68469672672) is greater than itself. Its abundance is 40334590944

Bases of 28135081728

• Binary: 11010001100111110110100011100000000₂
• Hexadecimal: 0x68CFB4700
• Base-36: CXAWG00

Squares and roots of 28135081728

• 28135081728 squared (28135081728²) is 791582823841239465984
• 28135081728 cubed (28135081728³) is 22271247443254299272278915940352
• The square root of 28135081728 is 167735.1535248351
• The cube root of 28135081728 is 3041.4643268579

Scales and comparisons

• 28,135,081,728 seconds is equal to 894 years, 31 weeks, 4 days, 12 hours, 28 minutes, 48 seconds.
• To count from 1 to 28,135,081,728 would take you about one thousand, seven hundred eighty-nine 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 28135081728 cubic inches would be around 253.5 feet tall.

Recreational maths with 28135081728

• 28135081728 backwards is 82718053182
• The number of decimal digits it has is: 11
• The sum of 28135081728's digits is 45
• More coming soon!