221541642

Names of 221541642

• Cardinal: 221541642 can be written as Two hundred twenty-one million, five hundred forty-one thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 2.21541642 × 10⁸

Factors of 221541642

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 455

Divisors of 221541642

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 49 54 63 81 98 126 147 162 189 243 294 343 378 441 443 486 567 686 729 882 886 1029 1134 1323 1329 1458 1701 2058 2646 2658 3087 3101 3402 3969 3987 5103 6174 6202 7938 7974 9261 9303 10206 11907 11961 18522 18606 21707 23814 23922 27783 27909 35721 35883 43414 55566 55818 65121 71442 71766 83349 83727 107649 130242 151949 166698 167454 195363 215298 250047 251181 303898 322947 390726 455847 500094 502362 586089 645894 753543 911694 1172178 1367541 1507086 1758267 2260629 2735082 3516534 4102623 4521258 5274801 8205246 10549602 12307869 15824403 24615738 31648806 36923607 73847214 110770821 221541642
• Sum of all divisors σ(n): 582350400
• Sum of proper divisors (its aliquot sum) s(n): 360808758
• 221541642 is an abundant number, because the sum of its proper divisors (360808758) is greater than itself. Its abundance is 139267116

Bases of 221541642

• Binary: 1101001101000111010100001010₂
• Hexadecimal: 0xD34750A
• Base-36: 3NWEMI

Squares and roots of 221541642

• 221541642 squared (221541642²) is 49080699140056164
• 221541642 cubed (221541642³) is 10873418677996030544781288
• The square root of 221541642 is 14884.2749907409
• The cube root of 221541642 is 605.0878837793

Scales and comparisons

• 221,541,642 seconds is equal to 7 years, 2 weeks, 2 days, 3 hours, 20 minutes, 42 seconds.
• To count from 1 to 221,541,642 would take you about ten 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 221541642 cubic inches would be around 50.4 feet tall.

Recreational maths with 221541642

• 221541642 backwards is 246145122
• 221541642 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 221541642's digits is 27
• More coming soon!