40685940

Names of 40685940

• Cardinal: 40685940 can be written as Forty million, six hundred eighty-five thousand, nine hundred forty.

Scientific notation

• Scientific notation: 4.068594 × 10⁷

Factors of 40685940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 237

Divisors of 40685940

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 41 45 60 74 82 90 111 123 148 149 164 180 185 205 222 246 298 333 369 370 410 444 447 492 555 596 615 666 738 740 745 820 894 1110 1230 1332 1341 1476 1490 1517 1665 1788 1845 2220 2235 2460 2682 2980 3034 3330 3690 4470 4551 5364 5513 6068 6109 6660 6705 7380 7585 8940 9102 11026 12218 13410 13653 15170 16539 18204 18327 22052 22755 24436 26820 27306 27565 30340 30545 33078 36654 45510 49617 54612 54981 55130 61090 66156 68265 73308 82695 91020 91635 99234 109962 110260 122180 136530 165390 183270 198468 219924 226033 248085 273060 274905 330780 366540 452066 496170 549810 678099 904132 992340 1099620 1130165 1356198 2034297 2260330 2712396 3390495 4068594 4520660 6780990 8137188 10171485 13561980 20342970 40685940
• Sum of all divisors σ(n): 130712400
• Sum of proper divisors (its aliquot sum) s(n): 90026460
• 40685940 is an abundant number, because the sum of its proper divisors (90026460) is greater than itself. Its abundance is 49340520

Bases of 40685940

• Binary: 10011011001101000101110100₂
• Hexadecimal: 0x26CD174
• Base-36: O81H0

Squares and roots of 40685940

• 40685940 squared (40685940²) is 1655345713683600
• 40685940 cubed (40685940³) is 67349296386188128584000
• The square root of 40685940 is 6378.5531274735
• The cube root of 40685940 is 343.9390215513

Scales and comparisons

• 40,685,940 seconds is equal to 1 year, 15 weeks, 1 day, 21 hours, 39 minutes.
• To count from 1 to 40,685,940 would take you about forty-eight weeks!

  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 40685940 cubic inches would be around 28.7 feet tall.

Recreational maths with 40685940

• 40685940 backwards is 04958604
• 40685940 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40685940's digits is 36
• More coming soon!