1642021485

Names of 1642021485

• Cardinal: 1642021485 can be written as One billion, six hundred forty-two million, twenty-one thousand, four hundred eighty-five.

Scientific notation

• Scientific notation: 1.642021485 × 10⁹

Factors of 1642021485

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 186

Divisors of 1642021485

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 5 13 15 31 39 61 65 73 93 155 183 195 219 305 365 403 465 793 915 949 1095 1209 1891 2015 2263 2379 2847 3721 3965 4453 4745 5673 6045 6789 9455 11163 11315 11895 13359 14235 18605 22265 24583 28365 29419 33945 48373 55815 57889 66795 73749 88257 115351 122915 138043 145119 147095 173667 241865 271633 289445 346053 368745 414129 441285 576755 690215 725595 814899 868335 1358165 1499563 1730265 1794559 2070645 3531229 4074495 4498689 5383677 7497815 8420623 8972795 10593687 17656145 22493445 25261869 26918385 42103115 52968435 109468099 126309345 328404297 547340495 1642021485
• Sum of all divisors σ(n): 3009936384
• Sum of proper divisors (its aliquot sum) s(n): 1367914899
• 1642021485 is a deficient number, because the sum of its proper divisors (1367914899) is less than itself. Its deficiency is 274106586

Bases of 1642021485

• Binary: 1100001110111110100001001101101₂
• Hexadecimal: 0x61DF426D
• Base-36: R5M7VX

Squares and roots of 1642021485

• 1642021485 squared (1642021485²) is 2696234557201605225
• 1642021485 cubed (1642021485³) is 4427275071524497255938259125
• The square root of 1642021485 is 40521.8642833719
• The cube root of 1642021485 is 1179.7580383423

Scales and comparisons

• 1,642,021,485 seconds is equal to 52 years, 10 weeks, 6 days, 21 hours, 4 minutes, 45 seconds.
• To count from 1 to 1,642,021,485 would take you about one hundred four 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 1642021485 cubic inches would be around 98.3 feet tall.

Recreational maths with 1642021485

• 1642021485 backwards is 5841202461
• The number of decimal digits it has is: 10
• The sum of 1642021485's digits is 33
• More coming soon!