131819940

Names of 131819940

• Cardinal: 131819940 can be written as One hundred thirty-one million, eight hundred nineteen thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.3181994 × 10⁸

Factors of 131819940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 871

Divisors of 131819940

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 43 45 54 60 63 70 84 86 90 105 108 126 129 135 140 172 180 189 210 215 252 258 270 301 315 378 387 420 430 516 540 602 630 645 756 774 811 860 903 945 1161 1204 1260 1290 1505 1548 1622 1806 1890 1935 2322 2433 2580 2709 3010 3244 3612 3780 3870 4055 4515 4644 4866 5418 5677 5805 6020 7299 7740 8110 8127 9030 9732 10836 11354 11610 12165 13545 14598 16220 16254 17031 18060 21897 22708 23220 24330 27090 28385 29196 32508 34062 34873 36495 40635 43794 48660 51093 54180 56770 68124 69746 72990 81270 85155 87588 102186 104619 109485 113540 139492 145980 153279 162540 170310 174365 204372 209238 218970 244111 255465 306558 313857 340620 348730 418476 437940 488222 510930 523095 613116 627714 697460 732333 766395 941571 976444 1021860 1046190 1220555 1255428 1464666 1532790 1569285 1883142 2092380 2196999 2441110 2929332 3065580 3138570 3661665 3766284 4393998 4707855 4882220 6277140 6590997 7323330 8787996 9415710 10984995 13181994 14646660 18831420 21969990 26363988 32954985 43939980 65909970 131819940
• Sum of all divisors σ(n): 480184320
• Sum of proper divisors (its aliquot sum) s(n): 348364380
• 131819940 is an abundant number, because the sum of its proper divisors (348364380) is greater than itself. Its abundance is 216544440

Bases of 131819940

• Binary: 111110110110110100110100100₂
• Hexadecimal: 0x7DB69A4
• Base-36: 26HCX0

Squares and roots of 131819940

• 131819940 squared (131819940²) is 17376496581603600
• 131819940 cubed (131819940³) is 2290568736797191655784000
• The square root of 131819940 is 11481.2865132789
• The cube root of 131819940 is 508.9327161357

Scales and comparisons

• 131,819,940 seconds is equal to 4 years, 9 weeks, 6 days, 16 hours, 39 minutes.
• To count from 1 to 131,819,940 would take you about 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 131819940 cubic inches would be around 42.4 feet tall.

Recreational maths with 131819940

• 131819940 backwards is 049918131
• 131819940 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 131819940's digits is 36
• More coming soon!