2138259825

Names of 2138259825

• Cardinal: 2138259825 can be written as Two billion, one hundred thirty-eight million, two hundred fifty-nine thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 2.138259825 × 10⁹

Factors of 2138259825

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1135

Divisors of 2138259825

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 5 9 13 15 25 39 45 53 65 75 117 159 169 195 225 265 325 477 507 585 689 795 845 975 1061 1325 1521 2067 2385 2535 2925 3183 3445 3975 4225 5305 6201 7605 8957 9549 10335 11925 12675 13793 15915 17225 26525 26871 31005 38025 41379 44785 47745 51675 56233 68965 79575 80613 124137 134355 155025 168699 179309 206895 223925 238725 281165 344825 403065 506097 537927 620685 671775 731029 843495 896545 1034475 1405825 1613781 2015325 2193087 2530485 2689635 3103425 3655145 4217475 4482725 6579261 8068905 9503377 10965435 12652425 13448175 18275725 28510131 32896305 40344525 47516885 54827175 85530393 142550655 164481525 237584425 427651965 712753275 2138259825
• Sum of all divisors σ(n): 4229357652
• Sum of proper divisors (its aliquot sum) s(n): 2091097827
• 2138259825 is a deficient number, because the sum of its proper divisors (2091097827) is less than itself. Its deficiency is 47161998

Bases of 2138259825

• Binary: 1111111011100110100000101110001₂
• Hexadecimal: 0x7F734171
• Base-36: ZD2BU9

Squares and roots of 2138259825

• 2138259825 squared (2138259825²) is 4572155079209030625
• 2138259825 cubed (2138259825³) is 9776455519542362962632140625
• The square root of 2138259825 is 46241.3216182237
• The cube root of 2138259825 is 1288.3093500433

Scales and comparisons

• 2,138,259,825 seconds is equal to 67 years, 51 weeks, 3 days, 9 hours, 3 minutes, 45 seconds.
• To count from 1 to 2,138,259,825 would take you about one hundred thirty-five 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 2138259825 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138259825

• 2138259825 backwards is 5289528312
• 2138259825 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 2138259825's digits is 45
• More coming soon!