40868431821

Names of 40868431821

• Cardinal: 40868431821 can be written as Forty billion, eight hundred sixty-eight million, four hundred thirty-one thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 4.0868431821 × 10¹⁰

Factors of 40868431821

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 234

Divisors of 40868431821

• Number of divisors d(n): 160
• Complete list of divisors:
  1 3 7 9 21 27 43 49 63 81 129 147 181 189 243 301 343 387 441 543 567 729 903 1029 1161 1267 1323 1629 1701 2107 2187 2401 2709 3087 3483 3801 3969 4887 5103 6321 7203 7783 8127 8869 9261 10449 11403 11907 14661 14749 15309 18963 21609 23349 24381 26607 27783 31347 34209 35721 43983 44247 54481 56889 62083 64827 70047 73143 79821 83349 94041 102627 103243 107163 131949 132741 163443 170667 186249 194481 210141 219429 239463 250047 307881 309729 381367 395847 398223 434581 490329 512001 558747 583443 630423 658287 718389 750141 923643 929187 1144101 1194669 1303743 1470987 1536003 1676241 1750329 1891269 2155167 2669569 2770929 2787561 3432303 3584007 3911229 4412961 4608009 5028723 5250987 5673807 6465501 8008707 8362683 10296909 10752021 11733687 13238883 15086169 17021421 18686983 19396503 24026121 25088049 30890727 32256063 35201061 39716649 45258507 56060949 72078363 75264147 92672181 105603183 119149947 135775521 168182847 216235089 225792441 278016543 316809549 504548541 648705267 834049629 950428647 1513645623 1946115801 4540936869 5838347403 13622810607 40868431821
• Sum of all divisors σ(n): 73571738240
• Sum of proper divisors (its aliquot sum) s(n): 32703306419
• 40868431821 is a deficient number, because the sum of its proper divisors (32703306419) is less than itself. Its deficiency is 8165125402

Bases of 40868431821

• Binary: 100110000011111100101100011111001101₂
• Hexadecimal: 0x983F2C7CD
• Base-36: IRW0BT9

Squares and roots of 40868431821

• 40868431821 squared (40868431821²) is 1670228719507725376041
• 40868431821 cubed (40868431821³) is 68259628548677607213523195400661
• The square root of 40868431821 is 202159.4217962645
• The cube root of 40868431821 is 3444.5248679533

Scales and comparisons

• 40,868,431,821 seconds is equal to 1,299 years, 25 weeks, 3 days, 6 hours, 10 minutes, 21 seconds.
• To count from 1 to 40,868,431,821 would take you about two thousand, five hundred ninety-eight 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 40868431821 cubic inches would be around 287 feet tall.

Recreational maths with 40868431821

• 40868431821 backwards is 12813486804
• The number of decimal digits it has is: 11
• The sum of 40868431821's digits is 45
• More coming soon!