18985249920

Names of 18985249920

• Cardinal: 18985249920 can be written as Eighteen billion, nine hundred eighty-five million, two hundred forty-nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.898524992 × 10¹⁰

Factors of 18985249920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 92

Divisors of 18985249920

• Number of divisors d(n): 1152
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 13 14 15 16 19 20 21 24 26 28 30 32 35 38 39 40 42 43 48 49 52 56 57 60 64 65 70 76 78 80 84 86 91 95 96 98 104 105 112 114 120 128 129 130 133 140 147 152 156 160 168 172 182 190 192 195 196 208 210 215 224 228 240 245 247 258 260 266 273 280 285 294 301 304 312 320 336 344 361 364 380 384 390 392 399 416 420 430 448 455 456 480 490 494 516 520 532 546 559 560 570 588 602 608 624 637 640 645 665 672 688 722 728 735 741 760 780 784 798 817 832 840 860 896 903 910 912 931 960 980 988 1032 1040 1064 1083 1092 1118 1120 1140 1176 1204 1216 1235 1248 1274 1290 1330 1344 1365 1376 1444 1456 1470 1482 1505 1520 1560 1568 1596 1634 1664 1677 1680 1720 1729 1805 1806 1820 1824 1862 1911 1920 1960 1976 1995 2064 2080 2107 2128 2166 2184 2236 2240 2280 2352 2408 2432 2451 2470 2496 2527 2548 2580 2660 2688 2730 2752 2793 2795 2888 2912 2940 2964 3010 3040 3120 3136 3185 3192 3268 3354 3360 3440 3458 3610 3612 3640 3648 3705 3724 3822 3913 3920 3952 3990 4085 4128 4160 4214 4256 4332 4368 4472 4480 4515 4560 4655 4693 4704 4816 4902 4940 4992 5054 5096 5160 5187 5320 5415 5460 5504 5586 5590 5719 5776 5824 5880 5928 6020 6080 6240 6272 6321 6370 6384 6536 6708 6720 6880 6916 7220 7224 7280 7296 7410 7448 7581 7644 7826 7840 7904 7980 8170 8256 8320 8385 8428 8512 8645 8664 8736 8944 9030 9120 9310 9386 9408 9555 9632 9804 9880 10108 10192 10320 10374 10535 10621 10640 10830 10920 11172 11180 11438 11552 11648 11739 11760 11856 12040 12103 12160 12255 12480 12635 12642 12740 12768 13072 13416 13440 13760 13832 13965 14079 14440 14448 14560 14820 14896 15162 15288 15523 15652 15680 15808 15960 16340 16512 16770 16856 17024 17157 17290 17328 17472 17689 17888 18060 18240 18620 18772 18816 19110 19264 19565 19608 19760 20216 20384 20640 20748 21070 21242 21280 21660 21840 22344 22360 22876 23104 23465 23478 23520 23712 24080 24206 24510 24960 25270 25284 25480 25536 25935 26144 26832 27391 27520 27664 27930 28158 28595 28880 28896 29120 29640 29792 30324 30576 31046 31304 31360 31605 31616 31863 31920 32680 32851 33540 33712 34314 34580 34656 34944 35378 35776 36120 36309 36480 37240 37544 37905 38220 38528 39130 39216 39520 40033 40432 40768 41280 41496 42140 42484 42560 43320 43680 44688 44720 45752 46208 46569 46930 46956 47040 47424 48160 48412 49020 50540 50568 50960 51072 51870 52288 53067 53105 53664 54782 55328 55860 56316 57190 57760 57792 58240 58695 59280 59584 60515 60648 61152 62092 62608 63210 63726 63840 65360 65702 67080 67424 68628 69160 69312 70395 70756 71552 72240 72618 74347 74480 75088 75810 76440 77615 78260 78432 79040 80066 80864 81536 82173 82560 82992 84280 84968 85120 85785 86640 87360 88445 89376 89440 91504 93138 93860 93912 94080 94848 96320 96824 98040 98553 101080 101136 101920 103740 104576 106134 106210 107328 108661 109564 110656 111720 112632 114380 115520 115584 117390 118560 119168 120099 121030 121296 122304 124184 125216 126420 127452 127680 130720 131404 134160 134848 136955 137256 138320 138624 140790 141512 144480 145236 148694 148960 150176 151620 152880 155230 156520 156864 158080 159315 160132 161728 164255 164346 165984 168560 169936 171570 173280 174720 176890 178752 178880 181545 183008 186276 187720 187824 192640 193648 196080 197106 200165 201799 202160 202272 203840 207480 212268 212420 214656 217322 219128 221312 223041 223440 225264 228760 229957 231040 232845 234780 237120 240198 242060 242592 244608 248368 250432 252840 254904 255360 261440 262808 265335 268320 269696 273910 274512 276640 281580 283024 288960 290472 297388 297920 300352 303240 305760 310460 313040 313728 318630 320264 323456 325983 328510 328692 331968 337120 339872 343140 346560 353780 357504 357760 363090 366016 371735 372552 375440 375648 387296 392160 394212 400330 403598 404320 404544 407680 410865 414960 424536 424840 434644 438256 446082 446880 450528 457520 459914 465690 469560 474240 480396 484120 485184 492765 496736 500864 505680 509808 520429 522880 525616 530670 536640 543305 547820 549024 553280 563160 566048 577920 580944 594776 595840 600495 600704 605397 606480 611520 620920 626080 637260 640528 651966 657020 657384 663936 674240 679744 686280 689871 693120 707560 726180 732032 743470 745104 750880 751296 760627 774592 784320 788424 800660 807196 808640 809088 821730 829920 849072 849680 869288 876512 892164 893760 901056 915040 919828 931380 939120 960792 968240 970368 985530 993472 1008995 1011360 1019616 1040858 1051232 1061340 1073280 1086610 1095640 1098048 1106560 1115205 1126320 1132096 1149785 1161888 1189552 1200990 1210794 1212960 1223040 1241840 1252160 1274520 1281056 1303932 1314040 1314768 1348480 1359488 1372560 1379742 1412593 1415120 1452360 1486940 1490208 1501760 1502592 1521254 1549184 1561287 1568640 1576848 1601320 1614392 1617280 1629915 1643460 1659840 1698144 1699360 1738576 1753024 1784328 1787520 1802112 1830080 1839656 1862760 1878240 1921584 1936480 1971060 1986944 2017990 2022720 2039232 2081716 2102464 2122680 2173220 2191280 2196096 2230410 2252640 2264192 2281881 2299570 2323776 2379104 2401980 2421588 2425920 2483680 2504320 2549040 2562112 2602145 2607864 2628080 2629536 2745120 2759484 2825186 2830240 2904720 2973880 2980416 3003520 3026985 3042508 3122574 3153696 3202640 3228784 3259830 3286920 3319680 3396288 3398720 3449355 3477152 3506048 3568656 3660160 3679312 3725520 3756480 3803135 3843168 3872960 3942120 4035980 4045440 4078464 4163432 4204928 4237779 4245360 4346440 4382560 4460820 4505280 4563762 4599140 4647552 4758208 4803960 4843176 4851840 4967360 5098080 5124224 5204290 5215728 5256160 5259072 5490240 5518968 5650372 5660480 5809440 5947760 5960832 6053970 6085016 6245148 6307392 6405280 6457568 6519660 6573840 6792576 6797440 6898710 6954304 7062965 7137312 7358624 7451040 7512960 7606270 7686336 7745920 7806435 7884240 8071960 8326864 8475558 8490720 8692880 8765120 8921640 9010560 9127524 9198280 9516416 9607920 9686352 9888151 9934720 10196160 10408580 10431456 10512320 10518144 10980480 11037936 11300744 11320960 11409405 11618880 11895520 12107940 12170032 12490296 12614784 12810560 12915136 13039320 13147680 13797420 13908608 14125930 14274624 14717248 14902080 15212540 15372672 15612870 15768480 16143920 16653728 16951116 16981440 17385760 17530240 17843280 18255048 18396560 19215840 19372704 19776302 20392320 20817160 20862912 21024640 21188895 22075872 22601488 22818810 23237760 23791040 24215880 24340064 24980592 25621120 25830272 26078640 26295360 27594840 28251860 28549248 29434496 29664453 29804160 30425080 31225740 31536960 32287840 33307456 33902232 33962880 34771520 35686560 36510096 36793120 38431680 38745408 39552604 41634320 41725824 42377790 44151744 45202976 45637620 47582080 48431760 48680128 49440755 49961184 52157280 52590720 55189680 56503720 59328906 60850160 62451480 63073920 64575680 66614912 67804464 69543040 71373120 73020192 73586240 76863360 77490816 79105208 83268640 84755580 88303488 90405952 91275240 96863520 97360256 98881510 99922368 104314560 110379360 113007440 118657812 121700320 124902960 129151360 135608928 142746240 146040384 147172480 148322265 158210416 166537280 169511160 180811904 182550480 193727040 197763020 199844736 208629120 220758720 226014880 237315624 243400640 249805920 271217856 292080768 296644530 316420832 333074560 339022320 365100960 387454080 395526040 441517440 452029760 474631248 486801280 499611840 542435712 593289060 632841664 678044640 730201920 791052080 904059520 949262496 999223680 1186578120 1265683328 1356089280 1460403840 1582104160 1898524992 2373156240 2712178560 3164208320 3797049984 4746312480 6328416640 9492624960 18985249920
• Sum of all divisors σ(n): 81871352640
• Sum of proper divisors (its aliquot sum) s(n): 62886102720
• 18985249920 is an abundant number, because the sum of its proper divisors (62886102720) is greater than itself. Its abundance is 43900852800

Bases of 18985249920

• Binary: 10001101011100110111110110010000000₂
• Hexadecimal: 0x46B9BEC80
• Base-36: 8PZBSLC

Squares and roots of 18985249920

• 18985249920 squared (18985249920²) is 360439714524860006400
• 18985249920 cubed (18985249920³) is 6843038061347921274516799488000
• The square root of 18985249920 is 137786.9729691453
• The cube root of 18985249920 is 2667.7109587695

Scales and comparisons

• 18,985,249,920 seconds is equal to 603 years, 34 weeks, 6 days, 16 hours, 32 minutes.
• To count from 1 to 18,985,249,920 would take you about one thousand, two hundred seven 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 18985249920 cubic inches would be around 222.3 feet tall.

Recreational maths with 18985249920

• 18985249920 backwards is 02994258981
• 18985249920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18985249920's digits is 57
• More coming soon!