90420549791

Names of 90420549791

• Cardinal: 90420549791 can be written as Ninety billion, four hundred twenty million, five hundred forty-nine thousand, seven hundred ninety-one.

Scientific notation

• Scientific notation: 9.0420549791 × 10¹⁰

Factors of 90420549791

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1129

Divisors of 90420549791

• Number of divisors d(n): 72
• Complete list of divisors:
  1 11 13 37 121 127 143 169 407 481 941 1397 1573 1651 1859 4477 4699 5291 6253 10351 12233 15367 18161 20449 21463 34817 51689 58201 61087 68783 113861 119507 134563 159029 199771 236093 382987 452621 568579 671957 756613 794131 1314577 1480193 1553591 1749319 2597023 4212857 4421759 4978831 5884073 7391527 8735441 14460347 17089501 19242509 20196683 48639349 54767141 57482867 64724803 96089851 187984511 222163513 535032839 632311537 711972833 747277271 2443798643 6955426907 8220049981 90420549791
• Sum of all divisors σ(n): 111518572032
• Sum of proper divisors (its aliquot sum) s(n): 21098022241
• 90420549791 is a deficient number, because the sum of its proper divisors (21098022241) is less than itself. Its deficiency is 69322527550

Bases of 90420549791

• Binary: 1010100001101011111000001100010011111₂
• Hexadecimal: 0x150D7C189F
• Base-36: 15JE26QN

Squares and roots of 90420549791

• 90420549791 squared (90420549791²) is 8175875824506710143681
• 90420549791 cubed (90420549791³) is 739267187074842162560312624520671
• The square root of 90420549791 is 300700.0994196709
• The cube root of 90420549791 is 4488.3741017611

Scales and comparisons

• 90,420,549,791 seconds is equal to 2,875 years, 4 weeks, 6 days, 3 hours, 23 minutes, 11 seconds.
• To count from 1 to 90,420,549,791 would take you about five thousand, seven hundred fifty 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 90420549791 cubic inches would be around 374 feet tall.

Recreational maths with 90420549791

• 90420549791 backwards is 19794502409
• The number of decimal digits it has is: 11
• The sum of 90420549791's digits is 50
• More coming soon!