1939817997

Names of 1939817997

• Cardinal: 1939817997 can be written as One billion, nine hundred thirty-nine million, eight hundred seventeen thousand, nine hundred ninety-seven.

Scientific notation

• Scientific notation: 1.939817997 × 10⁹

Factors of 1939817997

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1504

Divisors of 1939817997

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 13 17 27 39 51 117 153 169 221 289 351 459 507 663 867 1471 1521 1989 2601 2873 3757 4413 4563 5967 7803 8619 11271 13239 19123 25007 25857 33813 39717 48841 57369 75021 77571 101439 146523 172107 225063 248599 325091 425119 439569 516321 675189 745797 975273 1275357 1318707 2237391 2925819 3826071 4226183 5526547 6712173 8777457 11478213 12678549 16579641 38035647 49738923 71845111 114106941 149216769 215535333 646605999 1939817997
• Sum of all divisors σ(n): 3307937280
• Sum of proper divisors (its aliquot sum) s(n): 1368119283
• 1939817997 is a deficient number, because the sum of its proper divisors (1368119283) is less than itself. Its deficiency is 571698714

Bases of 1939817997

• Binary: 1110011100111110100011000001101₂
• Hexadecimal: 0x739F460D
• Base-36: W2X159

Squares and roots of 1939817997

• 1939817997 squared (1939817997²) is 3762893861485092009
• 1939817997 cubed (1939817997³) is 7299329233309606626259085973
• The square root of 1939817997 is 44043.3649600027
• The cube root of 1939817997 is 1247.1547010265

Scales and comparisons

• 1,939,817,997 seconds is equal to 61 years, 35 weeks, 2 days, 14 hours, 19 minutes, 57 seconds.
• To count from 1 to 1,939,817,997 would take you about one hundred twenty-three 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 1939817997 cubic inches would be around 103.9 feet tall.

Recreational maths with 1939817997

• 1939817997 backwards is 7997189391
• The number of decimal digits it has is: 10
• The sum of 1939817997's digits is 63
• More coming soon!