18503253990

Names of 18503253990

• Cardinal: 18503253990 can be written as Eighteen billion, five hundred three million, two hundred fifty-three thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.850325399 × 10¹⁰

Factors of 18503253990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 361

Divisors of 18503253990

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 67 78 90 117 130 134 169 195 201 234 271 335 338 390 402 507 542 585 603 670 813 845 871 1005 1014 1170 1206 1355 1521 1626 1690 1742 2010 2439 2535 2613 2710 3015 3042 3523 4065 4355 4489 4878 5070 5226 6030 7046 7605 7839 8130 8710 8978 10569 11323 12195 13065 13467 15210 15678 17615 18157 21138 22445 22646 24390 26130 26934 31707 33969 35230 36314 39195 40401 44890 45799 52845 54471 56615 58357 63414 67335 67938 78390 80802 90785 91598 101907 105690 108942 113230 116714 134670 137397 158535 163413 169845 175071 181570 202005 203814 228995 236041 272355 274794 291785 317070 326826 339690 350142 404010 412191 457990 472082 509535 525213 544710 583570 686985 708123 758641 817065 824382 875355 1019070 1050426 1180205 1216519 1373970 1416246 1517282 1634130 1750710 2060955 2124369 2275923 2360410 2433038 2626065 3068533 3540615 3649557 3793205 4121910 4248738 4551846 5252130 6082595 6137066 6827769 7081230 7299114 7586410 9205599 10621845 10948671 11379615 12165190 13655538 15342665 15814747 18247785 18411198 21243690 21897342 22759230 27616797 30685330 31629494 34138845 36495570 46027995 47444241 54743355 55233594 68277690 79073735 92055990 94888482 109486710 138083985 142332723 158147470 205591711 237221205 276167970 284665446 411183422 474442410 616775133 711663615 1027958555 1233550266 1423327230 1850325399 2055917110 3083875665 3700650798 6167751330 9251626995 18503253990
• Sum of all divisors σ(n): 53078040288
• Sum of proper divisors (its aliquot sum) s(n): 34574786298
• 18503253990 is an abundant number, because the sum of its proper divisors (34574786298) is greater than itself. Its abundance is 16071532308

Bases of 18503253990

• Binary: 10001001110111000010011111111100110₂
• Hexadecimal: 0x44EE13FE6
• Base-36: 8I0CY5I

Squares and roots of 18503253990

• 18503253990 squared (18503253990²) is 342370408218450920100
• 18503253990 cubed (18503253990³) is 6334966621925980778959496199000
• The square root of 18503253990 is 136026.6664665425
• The cube root of 18503253990 is 2644.9412922649

Scales and comparisons

• 18,503,253,990 seconds is equal to 588 years, 18 weeks, 46 minutes, 30 seconds.
• To count from 1 to 18,503,253,990 would take you about one thousand, one hundred seventy-six 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 18503253990 cubic inches would be around 220.4 feet tall.

Recreational maths with 18503253990

• 18503253990 backwards is 09935230581
• 18503253990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18503253990's digits is 45
• More coming soon!