31421817999

Names of 31421817999

• Cardinal: 31421817999 can be written as Thirty-one billion, four hundred twenty-one million, eight hundred seventeen thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 3.1421817999 × 10¹⁰

Factors of 31421817999

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4229

Divisors of 31421817999

• Number of divisors d(n): 112
• Complete list of divisors:
  1 3 9 11 13 27 33 39 73 81 99 117 143 219 243 297 351 429 657 729 803 891 949 1053 1287 1971 2409 2673 2847 3159 3861 4129 5913 7227 8019 8541 9477 10439 11583 12387 17739 21681 25623 31317 34749 37161 45419 53217 53677 65043 76869 93951 104247 111483 136257 161031 195129 230607 281853 301417 334449 408771 483093 585387 590447 691821 845559 904251 1003347 1226313 1449279 1771341 2536677 2712753 3010041 3315587 3678939 3918421 4347837 5314023 7610031 8138259 9946761 11036817 11755263 13043511 15942069 24414777 29840283 33110451 35265789 39130533 43102631 47826207 73244331 89520849 105797367 129307893 143478621 219732993 268562547 317392101 387923679 430435863 805687641 952176303 1163771037 2417062923 2856528909 3491313111 10473939333 31421817999
• Sum of all divisors σ(n): 56119166880
• Sum of proper divisors (its aliquot sum) s(n): 24697348881
• 31421817999 is a deficient number, because the sum of its proper divisors (24697348881) is less than itself. Its deficiency is 6724469118

Bases of 31421817999

• Binary: 11101010000111000101110010010001111₂
• Hexadecimal: 0x750E2E48F
• Base-36: EFNQLXR

Squares and roots of 31421817999

• 31421817999 squared (31421817999²) is 987330646362280364001
• 31421817999 cubed (31421817999³) is 31023723874830605016250893453999
• The square root of 31421817999 is 177262.0038220261
• The cube root of 31421817999 is 3155.5648001517

Scales and comparisons

• 31,421,817,999 seconds is equal to 999 years, 6 weeks, 10 hours, 46 minutes, 39 seconds.
• To count from 1 to 31,421,817,999 would take you about one thousand, nine 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 31421817999 cubic inches would be around 263 feet tall.

Recreational maths with 31421817999

• 31421817999 backwards is 99971812413
• The number of decimal digits it has is: 11
• The sum of 31421817999's digits is 54
• More coming soon!