28491939840

Names of 28491939840

• Cardinal: 28491939840 can be written as Twenty-eight billion, four hundred ninety-one million, nine hundred thirty-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.849193984 × 10¹⁰

Factors of 28491939840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 22
• Sum of prime factors: 30

Divisors of 28491939840

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 20 21 24 26 28 30 32 35 39 40 42 48 49 52 56 60 64 65 70 78 80 84 91 96 98 104 105 112 120 128 130 140 147 156 160 168 169 182 192 195 196 208 210 224 240 245 256 260 273 280 294 312 320 336 338 343 364 384 390 392 416 420 448 455 480 490 507 512 520 546 560 588 624 637 640 672 676 686 728 735 768 780 784 832 840 845 896 910 960 980 1014 1024 1029 1040 1092 1120 1176 1183 1248 1274 1280 1344 1352 1365 1372 1456 1470 1536 1560 1568 1664 1680 1690 1715 1792 1820 1911 1920 1960 2028 2048 2058 2080 2184 2240 2352 2366 2496 2535 2548 2560 2688 2704 2730 2744 2912 2940 3072 3120 3136 3185 3328 3360 3380 3430 3549 3584 3640 3822 3840 3920 4056 4096 4116 4160 4368 4459 4480 4704 4732 4992 5070 5096 5120 5145 5376 5408 5460 5488 5824 5880 5915 6144 6240 6272 6370 6656 6720 6760 6860 7098 7168 7280 7644 7680 7840 8112 8192 8232 8281 8320 8736 8918 8960 9408 9464 9555 9984 10140 10192 10240 10290 10752 10816 10920 10976 11648 11760 11830 12288 12480 12544 12740 13312 13377 13440 13520 13720 14196 14336 14560 15288 15360 15680 16224 16384 16464 16562 16640 17472 17745 17836 17920 18816 18928 19110 19968 20280 20384 20480 20580 21504 21632 21840 21952 22295 23296 23520 23660 24576 24843 24960 25088 25480 26624 26754 26880 27040 27440 28392 28672 29120 30576 30720 31360 32448 32768 32928 33124 33280 34944 35490 35672 35840 37632 37856 38220 39936 40560 40768 40960 41160 41405 43008 43264 43680 43904 44590 46592 47040 47320 49152 49686 49920 50176 50960 53248 53508 53760 54080 54880 56784 57344 57967 58240 61152 61440 62720 64896 65856 66248 66560 66885 69888 70980 71344 71680 75264 75712 76440 79872 81120 81536 81920 82320 82810 86016 86528 87360 87808 89180 93184 94080 94640 98304 99372 99840 100352 101920 106496 107016 107520 108160 109760 113568 114688 115934 116480 122304 122880 124215 125440 129792 131712 132496 133120 133770 139776 141960 142688 143360 150528 151424 152880 159744 162240 163072 163840 164640 165620 172032 173056 173901 174720 175616 178360 186368 188160 189280 198744 199680 200704 203840 212992 214032 215040 216320 219520 227136 229376 231868 232960 244608 245760 248430 250880 259584 263424 264992 266240 267540 279552 283920 285376 286720 289835 301056 302848 305760 319488 324480 326144 329280 331240 344064 346112 347802 349440 351232 356720 372736 376320 378560 397488 399360 401408 407680 425984 428064 430080 432640 439040 454272 463736 465920 489216 491520 496860 501760 519168 526848 529984 532480 535080 559104 567840 570752 573440 579670 602112 605696 611520 638976 648960 652288 658560 662480 688128 692224 695604 698880 702464 713440 745472 752640 757120 794976 798720 802816 815360 856128 860160 865280 869505 878080 908544 927472 931840 978432 993720 1003520 1038336 1053696 1059968 1064960 1070160 1118208 1135680 1141504 1146880 1159340 1204224 1211392 1223040 1277952 1297920 1304576 1317120 1324960 1384448 1391208 1397760 1404928 1426880 1490944 1505280 1514240 1589952 1597440 1605632 1630720 1712256 1720320 1730560 1739010 1756160 1817088 1854944 1863680 1956864 1987440 2007040 2076672 2107392 2119936 2129920 2140320 2236416 2271360 2283008 2318680 2408448 2422784 2446080 2595840 2609152 2634240 2649920 2768896 2782416 2795520 2809856 2853760 2981888 3010560 3028480 3179904 3194880 3261440 3424512 3440640 3461120 3478020 3512320 3634176 3709888 3727360 3913728 3974880 4014080 4153344 4214784 4239872 4280640 4472832 4542720 4566016 4637360 4816896 4845568 4892160 5191680 5218304 5268480 5299840 5537792 5564832 5591040 5619712 5707520 6021120 6056960 6359808 6389760 6522880 6849024 6922240 6956040 7024640 7268352 7419776 7454720 7827456 7949760 8028160 8306688 8429568 8479744 8561280 8945664 9085440 9132032 9274720 9691136 9784320 10383360 10436608 10536960 10599680 11129664 11182080 11239424 11415040 12042240 12113920 12719616 13045760 13698048 13844480 13912080 14049280 14536704 14839552 14909440 15654912 15899520 16613376 16859136 16959488 17122560 18170880 18264064 18549440 19382272 19568640 20766720 20873216 21073920 21199360 22259328 22364160 22830080 24084480 24227840 25439232 26091520 27396096 27688960 27824160 28098560 29073408 29679104 31309824 31799040 33718272 33918976 34245120 36341760 36528128 37098880 38764544 39137280 41533440 42147840 42398720 44518656 44728320 45660160 48455680 50878464 52183040 54792192 55648320 56197120 58146816 59358208 62619648 63598080 67837952 68490240 72683520 73056256 74197760 78274560 83066880 84295680 84797440 89037312 91320320 96911360 101756928 104366080 109584384 111296640 116293632 118716416 127196160 135675904 136980480 145367040 146112512 148395520 156549120 168591360 169594880 178074624 182640640 193822720 203513856 219168768 222593280 237432832 254392320 271351808 273960960 290734080 296791040 313098240 339189760 356149248 365281280 407027712 438337536 445186560 474865664 508784640 547921920 581468160 593582080 678379520 712298496 730562560 814055424 890373120 949731328 1017569280 1095843840 1187164160 1356759040 1424596992 1780746240 1899462656 2035138560 2191687680 2374328320 2849193984 3561492480 4070277120 4748656640 5698387968 7122984960 9497313280 14245969920 28491939840
• Sum of all divisors σ(n): 115131888000
• Sum of proper divisors (its aliquot sum) s(n): 86639948160
• 28491939840 is an abundant number, because the sum of its proper divisors (86639948160) is greater than itself. Its abundance is 58148008320

Bases of 28491939840

• Binary: 11010100010010000001000000000000000₂
• Hexadecimal: 0x6A2408000
• Base-36: D37D5HC

Squares and roots of 28491939840

• 28491939840 squared (28491939840²) is 811790635846179225600
• 28491939840 cubed (28491939840³) is 23129489959204685989652987904000
• The square root of 28491939840 is 168795.5563396145
• The cube root of 28491939840 is 3054.2693891917

Scales and comparisons

• 28,491,939,840 seconds is equal to 905 years, 49 weeks, 4 days, 19 hours, 44 minutes.
• To count from 1 to 28,491,939,840 would take you about one thousand, eight hundred eleven 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 28491939840 cubic inches would be around 254.5 feet tall.

Recreational maths with 28491939840

• 28491939840 backwards is 04893919482
• The number of decimal digits it has is: 11
• The sum of 28491939840's digits is 57
• More coming soon!