18138730302

Names of 18138730302

• Cardinal: 18138730302 can be written as Eighteen billion, one hundred thirty-eight million, seven hundred thirty thousand, three hundred two.

Scientific notation

• Scientific notation: 1.8138730302 × 10¹⁰

Factors of 18138730302

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 997

Divisors of 18138730302

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 81 99 121 126 154 162 163 189 198 231 242 297 326 363 378 462 489 567 594 693 726 811 847 891 978 1089 1134 1141 1386 1467 1622 1694 1782 1793 2079 2178 2282 2433 2541 2934 3267 3423 3586 4158 4401 4866 5082 5379 5677 6237 6534 6846 7299 7623 8802 8921 9801 10269 10758 11354 12474 12551 13203 14598 15246 16137 17031 17842 19602 19723 20538 21897 22869 25102 26406 26763 30807 32274 34062 37653 39446 43794 45738 48411 51093 53526 59169 61614 62447 65691 68607 75306 80289 92421 96822 98131 102186 112959 118338 124894 131382 132193 137214 138061 145233 153279 160578 177507 184842 187341 196262 225918 240867 264386 276122 290466 294393 306558 338877 355014 374682 396579 414183 459837 481734 532521 562023 588786 677754 686917 722601 793158 828366 883179 919674 925351 1016631 1065042 1124046 1189737 1242549 1373834 1445202 1454123 1597563 1686069 1766358 1850702 2033262 2060751 2379474 2485098 2649537 2776053 2908246 3195126 3372138 3569211 3727647 4121502 4362369 5058207 5299074 5552106 6182253 7138422 7455294 7948611 8328159 8724738 10116414 10178861 10707633 11182941 12364506 13087107 15897222 15995353 16656318 18546759 20357722 21415266 22365882 24984477 26174214 30536583 31990706 37093518 39261321 47986059 49968954 55640277 61073166 74953431 78522642 91609749 95972118 111280554 111967471 117783963 143958177 149906862 183219498 223934942 235567926 274829247 287916354 335902413 431874531 549658494 671804826 824487741 863749062 1007707239 1295623593 1648975482 2015414478 2591247186 3023121717 6046243434 9069365151 18138730302
• Sum of all divisors σ(n): 51433742976
• Sum of proper divisors (its aliquot sum) s(n): 33295012674
• 18138730302 is an abundant number, because the sum of its proper divisors (33295012674) is greater than itself. Its abundance is 15156282372

Bases of 18138730302

• Binary: 10000111001001001110000111100111110₂
• Hexadecimal: 0x439270F3E
• Base-36: 8BZBXVI

Squares and roots of 18138730302

• 18138730302 squared (18138730302²) is 329013536968693011204
• 18138730302 cubed (18138730302³) is 5967887812782229147661620303608
• The square root of 18138730302 is 134680.1035862387
• The cube root of 18138730302 is 2627.4570639821

Scales and comparisons

• 18,138,730,302 seconds is equal to 576 years, 39 weeks, 2 days, 11 minutes, 42 seconds.
• To count from 1 to 18,138,730,302 would take you about one thousand, one hundred fifty-three 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 18138730302 cubic inches would be around 219 feet tall.

Recreational maths with 18138730302

• 18138730302 backwards is 20303783181
• The number of decimal digits it has is: 11
• The sum of 18138730302's digits is 36
• More coming soon!