28128210880

Names of 28128210880

• Cardinal: 28128210880 can be written as Twenty-eight billion, one hundred twenty-eight million, two hundred ten thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.812821088 × 10¹⁰

Factors of 28128210880

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 276

Divisors of 28128210880

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 17 20 22 28 32 34 35 40 44 49 53 55 56 64 68 70 77 80 85 88 98 106 110 112 119 136 140 154 160 170 176 181 187 196 212 220 224 238 245 265 272 280 308 320 340 352 362 371 374 385 392 424 440 448 476 490 530 539 544 560 583 595 616 680 704 724 742 748 770 784 833 848 880 901 905 935 952 980 1060 1078 1088 1120 1166 1190 1232 1267 1309 1360 1448 1484 1496 1540 1568 1666 1696 1760 1802 1810 1855 1870 1904 1960 1991 2120 2156 2240 2332 2380 2464 2534 2597 2618 2695 2720 2896 2915 2968 2992 3077 3080 3136 3332 3392 3520 3604 3620 3710 3740 3808 3920 3982 4081 4165 4240 4312 4505 4664 4760 4928 5068 5194 5236 5390 5440 5792 5830 5936 5984 6154 6160 6307 6335 6545 6664 7208 7240 7420 7480 7616 7840 7964 8162 8330 8480 8624 8869 9010 9163 9328 9520 9593 9911 9955 10136 10388 10472 10780 11584 11660 11872 11968 12308 12320 12614 12670 12985 13090 13328 13937 14416 14480 14840 14960 15385 15680 15928 16324 16660 16960 17248 17738 18020 18326 18656 19040 19186 19822 19910 20272 20405 20776 20944 21539 21560 23320 23744 24616 24640 25228 25340 25970 26180 26656 27874 28567 28832 28960 29680 29920 30770 31535 31856 32648 33320 33847 34496 35476 36040 36652 37312 38080 38372 39644 39820 40544 40810 41552 41888 43078 43120 44149 44345 45815 46640 47965 49232 49555 50456 50680 51940 52360 53312 55748 57134 57664 57920 59360 59840 61540 63070 63712 65296 66640 67151 67694 69377 69685 70952 72080 73304 76744 79288 79640 81088 81620 83104 83776 86156 86240 88298 88690 91630 93280 95930 97559 98464 99110 100912 101360 103880 104720 105523 107695 111496 114268 118720 123080 126140 127424 130592 133280 134302 135388 138754 139370 141904 142835 144160 146608 150773 153488 158576 159280 163081 163240 166208 169235 172312 172480 176596 177380 183260 186560 191860 195118 196928 198220 201824 202720 207760 209440 211046 215390 220745 222992 228536 236929 246160 252280 261184 266560 268604 270776 277508 278740 283808 285670 288320 293216 301546 306976 317152 318560 326162 326480 335755 338470 344624 346885 353192 354760 366520 383720 390236 396440 403648 405440 415520 418880 422092 430780 441490 445984 457072 470057 473858 485639 487795 492320 504560 527615 537208 541552 555016 557480 567616 571340 586432 603092 613952 634304 637120 652324 652960 671510 676940 689248 693770 706384 709520 733040 738661 753865 767440 780472 792880 815405 831040 844184 861560 882980 891968 914144 940114 947716 971278 975590 984640 1009120 1055230 1074416 1083104 1110032 1114960 1141567 1142680 1184645 1206184 1304648 1305920 1343020 1353880 1378496 1387540 1412768 1419040 1466080 1477322 1507730 1534880 1560944 1585760 1630810 1658503 1688368 1723120 1765960 1793891 1828288 1880228 1895432 1942556 1951180 2018240 2110460 2148832 2166208 2220064 2229920 2283134 2285360 2350285 2369290 2412368 2428195 2609296 2686040 2707760 2775080 2825536 2838080 2932160 2954644 3015460 3069760 3121888 3171520 3261620 3317006 3376736 3446240 3531920 3587782 3693305 3760456 3790864 3885112 3902360 4220920 4297664 4440128 4459840 4566268 4570720 4700570 4738580 4824736 4856390 5170627 5218592 5372080 5415520 5550160 5707835 5909288 6030920 6243776 6523240 6634012 6753472 6892480 7063840 7175564 7386610 7520912 7581728 7770224 7804720 7990969 8292515 8441840 8969455 9132536 9141440 9401140 9477160 9649472 9712780 10341254 10437184 10744160 10831040 11100320 11415670 11818576 12061840 12557237 13046480 13268024 14127680 14351128 14773220 15041824 15163456 15540448 15609440 15981938 16585030 16883680 17938910 18265072 18802280 18954320 19425560 20682508 21488320 22200640 22831340 23637152 24123680 25114474 25853135 26092960 26536048 28702256 29546440 30083648 31080896 31218880 31963876 33170060 33767360 35877820 36530144 37604560 37908640 38851120 39954845 41365016 45662680 47274304 48247360 50228948 51706270 52185920 53072096 57404512 59092880 62786185 63927752 66340120 71755640 73060288 75209120 75817280 77702240 79909690 82730032 87900659 91325360 100457896 103412540 106144192 114809024 118185760 125572370 127855504 132680240 143511280 150418240 155404480 159819380 165460064 175801318 182650720 200915792 206825080 236371520 251144740 255711008 265360480 287022560 319638760 330920128 351602636 365301440 401831584 413650160 439503295 502289480 511422016 530720960 574045120 639277520 703205272 803663168 827300320 879006590 1004578960 1278555040 1406410544 1654600640 1758013180 2009157920 2557110080 2812821088 3516026360 4018315840 5625642176 7032052720 14064105440 28128210880
• Sum of all divisors σ(n): 92203780032
• Sum of proper divisors (its aliquot sum) s(n): 64075569152
• 28128210880 is an abundant number, because the sum of its proper divisors (64075569152) is greater than itself. Its abundance is 35947358272

Bases of 28128210880

• Binary: 11010001100100100100110111111000000₂
• Hexadecimal: 0x68C926FC0
• Base-36: CX6T6F4

Squares and roots of 28128210880

• 28128210880 squared (28128210880²) is 791196247309750374400
• 28128210880 cubed (28128210880³) is 22254934891793291211282153472000
• The square root of 28128210880 is 167714.6710338721
• The cube root of 28128210880 is 3041.2167220985

Scales and comparisons

• 28,128,210,880 seconds is equal to 894 years, 20 weeks, 1 day, 23 hours, 54 minutes, 40 seconds.
• To count from 1 to 28,128,210,880 would take you about one thousand, seven hundred eighty-eight 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 28128210880 cubic inches would be around 253.4 feet tall.

Recreational maths with 28128210880

• 28128210880 backwards is 08801282182
• 28128210880 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28128210880's digits is 40
• More coming soon!