28398128220

Names of 28398128220

• Cardinal: 28398128220 can be written as Twenty-eight billion, three hundred ninety-eight million, one hundred twenty-eight thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.839812822 × 10¹⁰

Factors of 28398128220

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 725

Divisors of 28398128220

• Number of divisors d(n): 576
• 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 53 55 60 63 66 67 70 77 84 90 99 105 106 110 126 132 134 140 154 159 165 180 198 201 210 212 220 231 252 265 268 308 315 318 330 335 371 385 396 402 420 462 469 477 495 530 577 583 603 630 636 660 670 693 737 742 770 795 804 924 938 954 990 1005 1060 1113 1154 1155 1166 1206 1260 1340 1386 1407 1474 1484 1540 1590 1731 1749 1855 1876 1908 1980 2010 2211 2226 2308 2310 2332 2345 2385 2412 2772 2814 2885 2915 2948 3015 3180 3339 3462 3465 3498 3551 3685 3710 4020 4039 4081 4221 4422 4452 4620 4690 4770 5159 5193 5247 5565 5628 5770 5830 6030 6347 6633 6678 6924 6930 6996 7035 7102 7370 7420 8078 8162 8442 8655 8745 8844 9380 9540 10318 10386 10494 10653 11055 11130 11540 11660 12060 12117 12243 12694 13266 13356 13860 14070 14204 14740 15477 16156 16324 16695 16884 17310 17490 17755 19041 20195 20405 20636 20772 20988 21105 21306 22110 22260 24234 24486 24857 25388 25795 25965 26235 26532 28140 30581 30954 31735 31959 33165 33390 34620 34980 35510 36351 36729 38082 38659 39061 40390 40810 42210 42612 44220 44429 46431 48468 48972 49714 51590 51930 52470 53265 57123 60585 61162 61215 61908 63470 63918 66330 66780 71020 72702 73458 74571 76164 77318 77385 78122 80780 81620 84420 88858 91743 92862 95205 99428 103180 103860 104940 106530 114246 115977 117183 121170 122324 122430 124285 126940 127836 132660 133287 145404 146916 149142 152905 154636 154770 156244 159795 177716 181755 183486 183645 185724 190410 193295 195305 213060 214067 222145 223713 228492 231954 232155 234366 242340 244860 248570 266574 270613 273427 275229 285615 298284 305810 309540 319590 336391 347931 351549 363510 366972 367290 372855 380820 386590 390610 399861 425249 428134 444290 447426 458715 463908 464310 468732 497140 533148 541226 546854 550458 571230 579885 585915 611620 639180 642201 666435 672782 695862 703098 727020 734580 745710 773180 781220 799722 811839 820281 850498 856268 888580 894852 917430 928620 1009173 1070335 1082452 1093708 1100916 1118565 1142460 1159770 1171830 1275747 1284402 1332870 1345564 1353065 1367135 1376145 1391724 1406196 1491420 1599444 1623678 1640562 1681955 1700996 1739655 1757745 1834860 1926603 1999305 2018346 2048927 2126245 2140670 2237130 2319540 2343660 2354737 2435517 2460843 2551494 2568804 2665740 2706130 2734270 2752290 2976743 3027519 3211005 3247356 3281124 3363910 3479310 3515490 3827241 3853206 3998610 4036692 4059195 4097854 4101405 4252490 4281340 4474260 4709474 4871034 4921686 5045865 5102988 5412260 5468540 5504580 5953486 6055038 6146781 6378735 6422010 6727820 6958620 7030980 7064211 7654482 7706412 7997220 8118390 8195708 8202810 8504980 8930229 9418948 9633015 9742068 9843372 10091730 10244635 11773685 11906972 12110076 12177585 12293562 12304215 12757470 12844020 14128422 14342489 14883715 15137595 15308964 16236780 16405620 17860458 18440343 19136205 19266030 20183460 20489270 21192633 22538197 23547370 24355170 24587124 24608430 25514940 26790687 28256844 28684978 29767430 30275190 30733905 35321055 35720916 36880686 38272410 38532060 40978540 42385266 43027467 44651145 45076394 47094740 48710340 49216860 53581374 57369956 59534860 60550380 61467810 67614591 70642110 71712445 73761372 76544820 84770532 86054934 89302290 90152788 92201715 105963165 107162748 112690985 122935620 129082401 133953435 135229182 141284220 143424890 157767379 172109868 178604580 184403430 202843773 211926330 215137335 225381970 258164802 267906870 270458364 286849780 315534758 338072955 368806860 405687546 423852660 430274670 450763940 473302137 516329604 535813740 631069516 645412005 676145910 788836895 811375092 860549340 946604274 1014218865 1290824010 1352291820 1419906411 1577673790 1893208548 2028437730 2366510685 2581648020 2839812822 3155347580 4056875460 4733021370 5679625644 7099532055 9466042740 14199064110 28398128220
• Sum of all divisors σ(n): 111248557056
• Sum of proper divisors (its aliquot sum) s(n): 82850428836
• 28398128220 is an abundant number, because the sum of its proper divisors (82850428836) is greater than itself. Its abundance is 54452300616

Bases of 28398128220

• Binary: 11010011100101010010000110001011100₂
• Hexadecimal: 0x69CA90C5C
• Base-36: D1NIFZ0

Squares and roots of 28398128220

• 28398128220 squared (28398128220²) is 806453686399560368400
• 28398128220 cubed (28398128220³) is 22901775189866385493453636248000
• The square root of 28398128220 is 168517.4418865893
• The cube root of 28398128220 is 3050.9135745759

Scales and comparisons

• 28,398,128,220 seconds is equal to 902 years, 50 weeks, 4 days, 57 minutes.
• To count from 1 to 28,398,128,220 would take you about one thousand, eight hundred five 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 28398128220 cubic inches would be around 254.2 feet tall.

Recreational maths with 28398128220

• 28398128220 backwards is 02282189382
• 28398128220 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28398128220's digits is 45
• More coming soon!