78409428609561590

Names of 78409428609561590

• Cardinal: 78409428609561590 can be written as Seventy-eight quadrillion, four hundred nine trillion, four hundred twenty-eight billion, six hundred nine million, five hundred sixty-one thousand, five hundred ninety.

Scientific notation

• Scientific notation: 7.840942860956159 × 10¹⁶

Factors of 78409428609561590

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3348531376

Divisors of 78409428609561590

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 5 10 29 58 145 290 80747 161494 403735 807470 2341663 4683326 11708315 23416630 3348450593 6696901186 16742252965 33484505930 97105067197 194210134394 485525335985 971050671970 270377340032971 540754680065942 1351886700164855 2703773400329710 7840942860956159 15681885721912318 39204714304780795 78409428609561590
• Sum of all divisors σ(n): 146005571824728480
• Sum of proper divisors (its aliquot sum) s(n): 67596143215166890
• 78409428609561590 is a deficient number, because the sum of its proper divisors (67596143215166890) is less than itself. Its deficiency is 10813285394394700

Bases of 78409428609561590

• Binary: 100010110100100001111010110111011010100000111001111110110₂
• Hexadecimal: 0x11690F5BB5073F6
• Base-36: LG1TM8AOGL2

Squares and roots of 78409428609561590

• 78409428609561590 squared (78409428609561590²) is 6148038494877935576906372003328100
• 78409428609561590 cubed (78409428609561590³) is 482064185452967978725079904512785816806961927679000
• The square root of 78409428609561590 is 280016836.2966084045
• The cube root of 78409428609561590 is 428012.1488413265

Scales and comparisons

• 78,409,428,609,561,590 seconds is equal to 2,493,177,293 years, 25 weeks, 5 days, 21 hours, 19 minutes, 50 seconds.
• To count from 1 to 78,409,428,609,561,590 would take you about seven billion, four hundred seventy-nine million, five hundred thirty-one thousand, eight hundred eighty 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 78409428609561590 cubic inches would be around 35667.7 feet tall.

Recreational maths with 78409428609561590

• 78409428609561590 backwards is 09516590682490487
• The number of decimal digits it has is: 17
• The sum of 78409428609561590's digits is 83
• More coming soon!