40642991865

Names of 40642991865

• Cardinal: 40642991865 can be written as Forty billion, six hundred forty-two million, nine hundred ninety-one thousand, eight hundred sixty-five.

Scientific notation

• Scientific notation: 4.0642991865 × 10¹⁰

Factors of 40642991865

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1236

Divisors of 40642991865

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 5 7 9 15 19 21 27 35 45 57 63 95 105 109 133 135 171 189 285 315 327 361 399 513 545 665 763 855 945 981 1083 1093 1197 1635 1805 1995 2071 2289 2527 2565 2943 3249 3279 3591 3815 4905 5415 5465 5985 6213 6867 7581 7651 9747 9837 10355 11445 12635 14497 14715 16245 16395 17955 18639 20601 20767 22743 22953 29511 31065 34335 37905 38255 39349 43491 48735 49185 55917 62301 68229 68859 72485 93195 103005 103835 113715 114765 118047 119137 130473 145369 147555 186903 196745 206577 217455 275443 279585 311505 341145 344295 354141 357411 391419 394573 436107 560709 590235 595685 652365 726845 826329 833959 934515 1032885 1062423 1072233 1183719 1308321 1377215 1770705 1787055 1957095 1972865 2180535 2263603 2478987 2501877 2762011 2803545 3216699 3551157 3924963 4131645 4169795 5312115 5361165 5918595 6541605 6790809 7436961 7505631 8286033 10653471 11318015 12394935 12509385 13810055 15845221 16083495 17755785 19624815 20372427 22516893 24858099 33954045 37184805 37528155 41430165 43008457 47535663 53267355 61117281 74574297 79226105 101862135 112584465 124290495 129025371 142606989 215042285 237678315 301059199 305586405 372871485 387076113 427820967 645126855 713034945 903177597 1161228339 1505295995 1935380565 2139104835 2709532791 4515887985 5806141695 8128598373 13547663955 40642991865
• Sum of all divisors σ(n): 88031116800
• Sum of proper divisors (its aliquot sum) s(n): 47388124935
• 40642991865 is an abundant number, because the sum of its proper divisors (47388124935) is greater than itself. Its abundance is 6745133070

Bases of 40642991865

• Binary: 100101110110100000101101011011111001₂
• Hexadecimal: 0x97682D6F9
• Base-36: IO5SD89

Squares and roots of 40642991865

• 40642991865 squared (40642991865²) is 1651852787738456178225
• 40642991865 cubed (40642991865³) is 67136239414231646199257665139625
• The square root of 40642991865 is 201601.0710909047
• The cube root of 40642991865 is 3438.1795810609

Scales and comparisons

• 40,642,991,865 seconds is equal to 1,292 years, 16 weeks, 4 days, 23 hours, 57 minutes, 45 seconds.
• To count from 1 to 40,642,991,865 would take you about two thousand, five hundred eighty-four 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 40642991865 cubic inches would be around 286.5 feet tall.

Recreational maths with 40642991865

• 40642991865 backwards is 56819924604
• The number of decimal digits it has is: 11
• The sum of 40642991865's digits is 54
• More coming soon!