1988856345

Names of 1988856345

• Cardinal: 1988856345 can be written as One billion, nine hundred eighty-eight million, eight hundred fifty-six thousand, three hundred forty-five.

Scientific notation

• Scientific notation: 1.988856345 × 10⁹

Factors of 1988856345

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 38

Divisors of 1988856345

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 15 21 23 35 49 69 105 115 147 161 245 343 345 483 735 805 1029 1127 1715 2401 2415 3381 5145 5635 7203 7889 12005 16807 16905 23667 36015 39445 50421 55223 84035 117649 118335 165669 252105 276115 352947 386561 588245 823543 828345 1159683 1764735 1932805 2470629 2705927 4117715 5764801 5798415 8117781 12353145 13529635 17294403 18941489 28824005 40588905 56824467 86472015 94707445 132590423 284122335 397771269 662952115 1988856345
• Sum of all divisors σ(n): 3873946176
• Sum of proper divisors (its aliquot sum) s(n): 1885089831
• 1988856345 is a deficient number, because the sum of its proper divisors (1885089831) is less than itself. Its deficiency is 103766514

Bases of 1988856345

• Binary: 1110110100010111000101000011001₂
• Hexadecimal: 0x768B8A19
• Base-36: WW43DL

Squares and roots of 1988856345

• 1988856345 squared (1988856345²) is 3955549561046759025
• 1988856345 cubed (1988856345³) is 7867019842449811528557263625
• The square root of 1988856345 is 44596.5956660371
• The cube root of 1988856345 is 1257.5766694095

Scales and comparisons

• 1,988,856,345 seconds is equal to 63 years, 12 weeks, 3 days, 4 hours, 5 minutes, 45 seconds.
• To count from 1 to 1,988,856,345 would take you about one hundred twenty-six 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 1988856345 cubic inches would be around 104.8 feet tall.

Recreational maths with 1988856345

• 1988856345 backwards is 5436588891
• The number of decimal digits it has is: 10
• The sum of 1988856345's digits is 57
• More coming soon!