18997621695520

Names of 18997621695520

• Cardinal: 18997621695520 can be written as Eighteen trillion, nine hundred ninety-seven billion, six hundred twenty-one million, six hundred ninety-five thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.899762169552 × 10¹³

Factors of 18997621695520

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1821

Divisors of 18997621695520

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 19 20 26 32 34 38 40 41 52 65 68 76 80 82 85 95 104 130 136 152 160 164 170 190 205 208 221 247 260 272 304 323 328 340 380 410 416 442 494 520 533 544 608 631 646 656 680 697 760 779 820 884 988 1040 1066 1093 1105 1235 1262 1292 1312 1360 1394 1520 1558 1615 1640 1768 1976 2080 2132 2186 2210 2470 2524 2584 2665 2720 2788 3040 3116 3155 3230 3280 3485 3536 3895 3952 4199 4264 4372 4420 4940 5048 5168 5330 5465 5576 6232 6310 6460 6560 6970 7072 7790 7904 8203 8398 8528 8744 8840 9061 9880 10096 10127 10336 10660 10727 10930 11152 11989 12464 12620 12920 13243 13940 14209 15580 16406 16796 17056 17488 17680 18122 18581 19760 20192 20254 20767 20995 21320 21454 21860 22304 23978 24928 25240 25840 25871 26486 27880 28418 31160 32812 33592 34976 35360 36244 37162 39520 40508 41015 41534 41990 42640 42908 43720 44813 45305 47956 50480 50635 51680 51742 52972 53635 55760 56836 59945 62320 65624 66215 67184 71045 72488 74324 81016 82030 83068 83980 85280 85816 87440 89626 90610 92905 95912 100960 101270 103484 103835 105944 107270 111520 113672 119890 124640 129355 131248 132430 134368 139451 142090 144976 148648 155857 162032 164060 166136 167960 171632 172159 174880 179252 181220 185810 191824 202540 203813 206968 207670 211888 214540 224065 227344 239780 241553 258710 262496 264860 269971 278902 284180 289952 297296 311714 324064 328120 332272 335920 336323 343264 344318 353039 358504 362440 371620 383648 405080 407626 413936 415340 423776 429080 439807 448130 454688 479560 483106 491549 517420 529720 539942 557804 568360 582569 594592 623428 656240 664544 671840 672646 688636 689683 697255 706078 717008 724880 743240 761821 779285 810160 815252 827872 830680 851447 858160 860795 879614 896260 959120 966212 983098 1019065 1034840 1059440 1079884 1115608 1136720 1165138 1207765 1246856 1312480 1345292 1349855 1377272 1379366 1394510 1412156 1434016 1449760 1486480 1523642 1558570 1620320 1630504 1661360 1681615 1702894 1716320 1721590 1759228 1765195 1792520 1918240 1932424 1966196 2038130 2069680 2118880 2159768 2199035 2231216 2273440 2330276 2415530 2457745 2493712 2649569 2690584 2699710 2754544 2758732 2789020 2824312 2912845 2972960 3047284 3117140 3261008 3322720 3363230 3405788 3443180 3448415 3518456 3530390 3585040 3809105 3864848 3932392 4076260 4139360 4257235 4319536 4398070 4462432 4589507 4660552 4831060 4915490 4987424 5299138 5381168 5399420 5509088 5517464 5578040 5648624 5717491 5825690 6094568 6234280 6390137 6522016 6726460 6811576 6886360 6896830 7036912 7060780 7170080 7618210 7729696 7864784 8152520 8356333 8514470 8639072 8796140 8965879 9179014 9321104 9662120 9830980 9903673 10598276 10762336 10798840 11034928 11068811 11156080 11297248 11434982 11651380 11724611 12189136 12468560 12780274 13103977 13247845 13452920 13623152 13772720 13793660 14073824 14121560 14474599 15236420 15729568 16305040 16712666 17028940 17592280 17931758 18358028 18642208 19324240 19661960 19807346 21196552 21597680 22069856 22137622 22312160 22869964 22947535 23302760 23449222 24378272 24937120 25560548 26207954 26495690 26905840 27246304 27545440 27587320 28243120 28277003 28587455 28949198 30472840 31950685 32610080 33425332 34057880 35184560 35863516 36716056 38648480 39323920 39614692 41781665 42393104 43195360 44275244 44829395 45739928 45895070 46605520 46898444 49518365 51121096 52415908 52991380 53811680 55174640 55344055 56486240 56554006 57174910 57898396 58623055 60945680 63901370 65519885 66850664 68115760 70369120 71727032 72372995 73432112 78647840 79229384 83563330 84786208 88550488 89658790 91479856 91790140 93211040 93796888 99036730 102242192 104831816 105982760 108632329 110349280 110688110 113108012 114349820 115796792 117246110 121891360 127802740 131039770 133701328 136231520 141385015 143454064 144745990 146864224 152419943 158458768 167126660 170351701 177100976 179317580 182959712 183580280 187593776 188169787 198073460 204484384 209663632 211965520 217264658 221376220 222767609 226216024 228699640 231593584 234492220 255605480 262079540 267402656 282770030 286908128 289491980 304839886 316917536 334253320 340703402 354201952 358635160 367160560 367601039 375187552 376339574 396146920 419327264 423931040 434529316 442752440 445535218 452432048 457399280 463187168 468984440 480709051 511210960 524159080 537263057 543161645 565540060 578983960 609679772 668506640 681406804 717270320 734321120 735202078 752679148 762099715 792293840 851758505 869058632 885504880 891070436 904864096 914798560 937968880 940848935 961418102 1022421920 1048318160 1074526114 1086323290 1113838045 1131080120 1157967920 1219359544 1337013280 1362813608 1434540640 1470404156 1505358296 1524199430 1584587680 1703517010 1738117264 1771009760 1782140872 1838005195 1875937760 1881697870 1922836204 2096636320 2149052228 2172646580 2227676090 2262160240 2315935840 2403545255 2438719088 2686315285 2725627216 2895978917 2940808312 3010716592 3048398860 3407034020 3476234528 3564281744 3676010390 3763395740 3845672408 4298104456 4345293160 4455352180 4524320480 4807090510 4877438176 5372630570 5451254432 5791957834 5881616624 6021433184 6096797720 6249217663 6814068040 6984419741 7128563488 7352020780 7526791480 7691344816 8596208912 8690586320 8910704360 9133471969 9614181020 10745261140 11583915668 11763233248 12193595440 12498435326 13628136080 13968839482 14479894585 14704041560 15053582960 15382689632 17192417824 17381172640 17821408720 18266943938 19228362040 21490522280 23167831336 24387190880 24996870652 27256272160 27937678964 28959789170 29408083120 30107165920 31246088315 34922098705 35642817440 36533887876 38456724080 42981044560 45667359845 46335662672 49993741304 55875357928 57919578340 58816166240 62492176630 69844197410 73067775752 76913448160 85962089120 91334719690 92671325344 99987482608 111750715856 115839156680 118735135597 124984353260 139688394820 146135551504 182669439380 199974965216 223501431712 231678313360 237470271194 249968706520 279376789640 292271103008 365338878760 463356626720 474940542388 499937413040 558753579280 593675677985 730677757520 949881084776 999874826080 1117507158560 1187351355970 1461355515040 1899762169552 2374702711940 3799524339104 4749405423880 9498810847760 18997621695520
• Sum of all divisors σ(n): 55323038776320
• Sum of proper divisors (its aliquot sum) s(n): 36325417080800
• 18997621695520 is an abundant number, because the sum of its proper divisors (36325417080800) is greater than itself. Its abundance is 17327795385280

Bases of 18997621695520

• Binary: 100010100011100111010011111100010010000100000₂
• Hexadecimal: 0x11473A7E2420
• Base-36: 6QFDXGBOG

Squares and roots of 18997621695520

• 18997621695520 squared (18997621695520²) is 360909630086092199588070400
• 18997621695520 cubed (18997621695520³) is 6856424618645642896309364238013124608000
• The square root of 18997621695520 is 4358626.1247691341
• The cube root of 18997621695520 is 26682.9030597791

Scales and comparisons

• 18,997,621,695,520 seconds is equal to 604,065 years, 31 weeks, 3 days, 17 hours, 38 minutes, 40 seconds.
• To count from 1 to 18,997,621,695,520 would take you about one million, five hundred ten thousand, one hundred sixty-four 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 18997621695520 cubic inches would be around 2223.6 feet tall.

Recreational maths with 18997621695520

• 18997621695520 backwards is 02559612679981
• The number of decimal digits it has is: 14
• The sum of 18997621695520's digits is 70
• More coming soon!