18990436722840

Names of 18990436722840

• Cardinal: 18990436722840 can be written as Eighteen trillion, nine hundred ninety billion, four hundred thirty-six million, seven hundred twenty-two thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.899043672284 × 10¹³

Factors of 18990436722840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 263837

Divisors of 18990436722840

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 30 33 36 40 44 45 55 60 66 72 88 90 99 110 120 121 132 165 180 198 220 242 264 330 360 363 396 440 484 495 605 660 726 792 968 990 1089 1210 1320 1452 1663 1815 1980 2178 2420 2904 3326 3630 3960 4356 4840 4989 5445 6652 7260 8315 8712 9978 10890 13304 14520 14967 16630 18293 19956 21780 24945 29934 33260 36586 39912 43560 49890 54879 59868 66520 73172 74835 91465 99780 109758 119736 146344 149670 164637 182930 199560 201223 219516 262153 274395 299340 329274 365860 402446 439032 524306 548790 598680 603669 658548 731720 786459 804892 823185 1006115 1048612 1097580 1207338 1310765 1317096 1572918 1609784 1646370 1811007 2012230 2097224 2195160 2359377 2414676 2621530 2883683 3018345 3145836 3292740 3622014 3932295 4024460 4718754 4829352 5243060 5767366 6036690 6291672 6585480 7244028 7864590 8048920 8651049 9055035 9437508 10486120 11534732 11796885 12073380 14418415 14488056 15729180 17302098 18110070 18875016 23069464 23593770 24146760 25953147 28836830 31458360 31720513 34604196 36220140 43255245 47187540 51906294 57673660 63441026 69208392 72440280 86510490 94375080 95161539 103812588 115347320 126882052 129765735 158602565 173020980 190323078 207625176 253764104 259531470 285484617 317205130 346041960 380646156 435960439 475807695 519062940 570969234 634410260 761292312 871920878 951615390 1038125880 1141938468 1268820520 1307881317 1427423085 1743841756 1903230780 2179802195 2283876936 2615762634 2854846170 3487683512 3806461560 3923643951 4359604390 4795564829 5231525268 5709692340 6539406585 7847287902 8719208780 9591129658 10463050536 11419384680 13078813170 14386694487 15694575804 17438417560 19182259316 19618219755 23977824145 26157626340 28773388974 31389151608 38364518632 39236439510 43160083461 47955648290 52315252680 52751213119 57546777948 71933472435 78472879020 86320166922 95911296580 105502426238 115093555896 143866944870 156945758040 158253639357 172640333844 191822593160 211004852476 215800417305 263756065595 287733889740 316507278714 345280667688 422009704952 431600834610 474760918071 527512131190 575467779480 633014557428 791268196785 863201669220 949521836142 1055024262380 1266029114856 1582536393570 1726403338440 1899043672284 2110048524760 2373804590355 3165072787140 3798087344568 4747609180710 6330145574280 9495218361420 18990436722840
• Sum of all divisors σ(n): 67880856476160
• Sum of proper divisors (its aliquot sum) s(n): 48890419753320
• 18990436722840 is an abundant number, because the sum of its proper divisors (48890419753320) is greater than itself. Its abundance is 29899983030480

Bases of 18990436722840

• Binary: 100010100010110001110001111000010100010011000₂
• Hexadecimal: 0x11458E3C2898
• Base-36: 6QC33PFA0

Squares and roots of 18990436722840

• 18990436722840 squared (18990436722840²) is 360636686924190038977665600
• 18990436722840 cubed (18990436722840³) is 6848648182968490563324391780817402304000
• The square root of 18990436722840 is 4357801.8223457569
• The cube root of 18990436722840 is 26679.5387771881

Scales and comparisons

• 18,990,436,722,840 seconds is equal to 603,837 years, 7 weeks, 4 days, 7 hours, 54 minutes.
• To count from 1 to 18,990,436,722,840 would take you about one million, five hundred nine thousand, five hundred ninety-two 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 18990436722840 cubic inches would be around 2223.3 feet tall.

Recreational maths with 18990436722840

• 18990436722840 backwards is 04822763409981
• The number of decimal digits it has is: 14
• The sum of 18990436722840's digits is 63
• More coming soon!