2138229247

Names of 2138229247

• Cardinal: 2138229247 can be written as Two billion, one hundred thirty-eight million, two hundred twenty-nine thousand, two hundred forty-seven.

Scientific notation

• Scientific notation: 2.138229247 × 10⁹

Factors of 2138229247

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 197

Divisors of 2138229247

• Number of divisors d(n): 128
• Complete list of divisors:
  1 7 11 17 23 29 31 77 79 119 161 187 203 217 253 319 341 391 493 527 553 667 713 869 899 1309 1343 1771 1817 2233 2291 2387 2449 2737 3451 3689 4301 4669 4991 5423 5797 6083 6293 7337 7843 9401 9889 11339 12121 12719 14773 15283 16037 17143 19987 20677 25201 26939 30107 30889 37961 38947 40579 41633 51359 52693 54901 56327 69223 71021 79373 84847 103411 106981 124729 133331 139909 144739 168113 176407 188573 216223 227447 272629 291431 339779 351509 368851 394289 428417 457963 497147 579623 619597 781231 873103 895781 933317 957559 1176791 1207357 1592129 1633483 2378453 2460563 2998919 3205741 3866599 4057361 4337179 5468617 6270467 6702913 8451499 9853591 10533149 11434381 13280927 17968313 27066193 27769211 68975137 73732043 92966489 125778191 194384477 305461321 2138229247
• Sum of all divisors σ(n): 3185049600
• Sum of proper divisors (its aliquot sum) s(n): 1046820353
• 2138229247 is a deficient number, because the sum of its proper divisors (1046820353) is less than itself. Its deficiency is 1091408894

Bases of 2138229247

• Binary: 1111111011100101100100111111111₂
• Hexadecimal: 0x7F72C9FF
• Base-36: ZD1O8V

Squares and roots of 2138229247

• 2138229247 squared (2138229247²) is 4572024312726187009
• 2138229247 cubed (2138229247³) is 9776036103466207365435252223
• The square root of 2138229247 is 46240.9909820281
• The cube root of 2138229247 is 1288.3032088953

Scales and comparisons

• 2,138,229,247 seconds is equal to 67 years, 51 weeks, 3 days, 34 minutes, 7 seconds.
• To count from 1 to 2,138,229,247 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 2138229247 cubic inches would be around 107.4 feet tall.

Recreational maths with 2138229247

• 2138229247 backwards is 7429228312
• The number of decimal digits it has is: 10
• The sum of 2138229247's digits is 40
• More coming soon!