40640398218

Names of 40640398218

• Cardinal: 40640398218 can be written as Forty billion, six hundred forty million, three hundred ninety-eight thousand, two hundred eighteen.

Scientific notation

• Scientific notation: 4.0640398218 × 10¹⁰

Factors of 40640398218

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2650

Divisors of 40640398218

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 29 42 49 54 58 63 87 98 126 147 174 189 203 261 294 343 378 406 441 522 609 686 783 841 882 1029 1218 1323 1421 1566 1682 1827 2058 2523 2609 2646 2842 3087 3654 4263 5046 5218 5481 5887 6174 7569 7827 8526 9261 9947 10962 11774 12789 15138 15654 17661 18263 18522 19894 22707 23481 25578 29841 35322 36526 38367 41209 45414 46962 52983 54789 59682 70443 75661 76734 82418 89523 105966 109578 123627 127841 140886 151322 158949 164367 179046 226983 247254 255682 268569 288463 317898 328734 370881 383523 453966 493101 529627 537138 576926 680949 741762 767046 865389 894887 986202 1059254 1112643 1150569 1361898 1588881 1730778 1789774 2042847 2194169 2225286 2301138 2596167 2684661 3177762 3451707 3707389 4085694 4388338 4766643 5192334 5369322 6582507 6903414 7414778 7788501 8053983 9533286 11122167 13165014 14299929 15359183 15577002 16107966 19747521 22244334 24161949 25951723 28599858 30718366 33366501 39495042 46077549 48323898 51903446 59242563 66733002 77855169 92155098 100099503 107514281 118485126 138232647 155710338 200199006 215028562 233565507 276465294 322542843 414697941 467131014 645085686 700696521 752599967 829395882 967628529 1401393042 1505199934 1935257058 2257799901 2902885587 4515599802 5805771174 6773399703 13546799406 20320199109 40640398218
• Sum of all divisors σ(n): 109118880000
• Sum of proper divisors (its aliquot sum) s(n): 68478481782
• 40640398218 is an abundant number, because the sum of its proper divisors (68478481782) is greater than itself. Its abundance is 27838083564

Bases of 40640398218

• Binary: 100101110110010110110100001110001010₂
• Hexadecimal: 0x9765B438A
• Base-36: IO48RYI

Squares and roots of 40640398218

• 40640398218 squared (40640398218²) is 1651641967317617575524
• 40640398218 cubed (40640398218³) is 67123387265348919556331050016232
• The square root of 40640398218 is 201594.6383662025
• The cube root of 40640398218 is 3438.1064432869

Scales and comparisons

• 40,640,398,218 seconds is equal to 1,292 years, 12 weeks, 2 days, 23 hours, 30 minutes, 18 seconds.
• To count from 1 to 40,640,398,218 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 40640398218 cubic inches would be around 286.5 feet tall.

Recreational maths with 40640398218

• 40640398218 backwards is 81289304604
• The number of decimal digits it has is: 11
• The sum of 40640398218's digits is 45
• More coming soon!