18948638397740

Names of 18948638397740

• Cardinal: 18948638397740 can be written as Eighteen trillion, nine hundred forty-eight billion, six hundred thirty-eight million, three hundred ninety-seven thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.894863839774 × 10¹³

Factors of 18948638397740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1193

Divisors of 18948638397740

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 10 20 23 29 41 46 58 82 92 115 116 145 164 205 230 290 410 460 580 667 820 841 943 1093 1189 1334 1682 1886 2186 2378 2668 3335 3364 3772 4205 4372 4715 4756 5465 5945 6670 8410 9430 10930 11890 13340 16820 18860 19343 21860 23780 25139 27347 31697 34481 38686 44813 50278 54694 63394 68962 77372 89626 96715 100556 109388 125695 126788 136735 137924 158485 172405 179252 193430 224065 251390 273470 316970 344810 386860 448130 502780 546940 633940 689620 729031 793063 896260 919213 1030699 1194649 1299577 1458062 1586126 1838426 2061398 2389298 2599154 2916124 3172252 3645155 3676852 3965315 4122796 4596065 4778596 5153495 5198308 5973245 6497885 7290310 7930630 9192130 10306990 11946490 12995770 14580620 15861260 18384260 20613980 21141899 23892980 25991540 27476927 29890271 34644821 37687733 42283798 48980609 54953854 59780542 69289642 75375466 84567596 97961218 105709495 109907708 119561084 137384635 138579284 149451355 150750932 173224105 188438665 195922436 211418990 244903045 274769270 298902710 346448210 376877330 422837980 489806090 549538540 597805420 692896420 753754660 796830883 866817859 979612180 1004699809 1126554007 1420437661 1593661766 1733635718 2009399618 2253108014 2840875322 3187323532 3467271436 3984154415 4018799236 4334089295 4506216028 5023499045 5632770035 5681750644 7102188305 7968308830 8668178590 10046998090 11265540070 14204376610 15936617660 17336357180 20093996180 22531080140 23108095607 28408753220 32670066203 41192692169 46216191214 65340132406 82385384338 92432382428 115540478035 130680264812 163350331015 164770768676 205963460845 231080956070 326700662030 411926921690 462161912140 653401324060 823853843380 947431919887 1894863839774 3789727679548 4737159599435 9474319198870 18948638397740
• Sum of all divisors σ(n): 44092611789408
• Sum of proper divisors (its aliquot sum) s(n): 25143973391668
• 18948638397740 is an abundant number, because the sum of its proper divisors (25143973391668) is greater than itself. Its abundance is 6195334993928

Bases of 18948638397740

• Binary: 100010011101111010010110111000101010100101100₂
• Hexadecimal: 0x113BD2DC552C
• Base-36: 6PSVU297W

Squares and roots of 18948638397740

• 18948638397740 squared (18948638397740²) is 359050897128306714437107600
• 18948638397740 cubed (18948638397740³) is 6803525616068427308650838279663976824000
• The square root of 18948638397740 is 4353003.3767204913
• The cube root of 18948638397740 is 26659.9503352689

Scales and comparisons

• 18,948,638,397,740 seconds is equal to 602,508 years, 4 weeks, 4 days, 10 hours, 2 minutes, 20 seconds.
• To count from 1 to 18,948,638,397,740 would take you about one million, five hundred six thousand, two hundred seventy 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 18948638397740 cubic inches would be around 2221.7 feet tall.

Recreational maths with 18948638397740

• 18948638397740 backwards is 04779383684981
• The number of decimal digits it has is: 14
• The sum of 18948638397740's digits is 77
• More coming soon!