390121412409

Names of 390121412409

• Cardinal: 390121412409 can be written as Three hundred ninety billion, one hundred twenty-one million, four hundred twelve thousand, four hundred nine.

Scientific notation

• Scientific notation: 3.90121412409 × 10¹¹

Factors of 390121412409

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 388

Divisors of 390121412409

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 9 17 37 51 111 153 289 331 333 629 867 993 1369 1887 2601 2979 4107 5627 5661 10693 12247 12321 16881 23273 32079 36741 50643 69819 95659 96237 109561 110223 208199 209457 286977 328683 395641 453139 624597 860931 986049 1186923 1359417 1862537 1873791 3539383 3560769 4053757 4078251 5587611 7703363 10618149 12161271 16762833 23110089 31663129 31854447 36483813 68913869 69330267 94989387 130957171 149989009 206741607 284968161 392871513 449967027 620224821 1171535773 1178614539 1349901081 2549813153 3514607319 7649439459 10543821957 22948318377 43346823601 130040470803 390121412409
• Sum of all divisors σ(n): 617086228941
• Sum of proper divisors (its aliquot sum) s(n): 226964816532
• 390121412409 is a deficient number, because the sum of its proper divisors (226964816532) is less than itself. Its deficiency is 163156595877

Bases of 390121412409

• Binary: 101101011010101000011000101011100111001₂
• Hexadecimal: 0x5AD50C5739
• Base-36: 4Z7W7SC9

Squares and roots of 390121412409

• 390121412409 squared (390121412409²) is 152194716419993059183281
• 390121412409 cubed (390121412409³) is 59374417730954916294558311718733929
• 390121412409 is a perfect square number. Its square root is 624597
• The cube root of 390121412409 is 7306.9016633421

Scales and comparisons

• 390,121,412,409 seconds is equal to 12,404 years, 34 weeks, 3 hours, 9 seconds.
• To count from 1 to 390,121,412,409 would take you about twenty-four thousand, eight hundred nine 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 390121412409 cubic inches would be around 608.9 feet tall.

Recreational maths with 390121412409

• 390121412409 backwards is 904214121093
• The number of decimal digits it has is: 12
• The sum of 390121412409's digits is 36
• More coming soon!