13881393840

Names of 13881393840

• Cardinal: 13881393840 can be written as Thirteen billion, eight hundred eighty-one million, three hundred ninety-three thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.388139384 × 10¹⁰

Factors of 13881393840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 792400

Divisors of 13881393840

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 73 80 120 146 219 240 292 365 438 584 730 876 1095 1168 1460 1752 2190 2920 3504 4380 5840 8760 17520 792317 1584634 2376951 3169268 3961585 4753902 6338536 7923170 9507804 11884755 12677072 15846340 19015608 23769510 31692680 38031216 47539020 57839141 63385360 95078040 115678282 173517423 190156080 231356564 289195705 347034846 462713128 578391410 694069692 867587115 925426256 1156782820 1388139384 1735174230 2313565640 2776278768 3470348460 4627131280 6940696920 13881393840
• Sum of all divisors σ(n): 43621859808
• Sum of proper divisors (its aliquot sum) s(n): 29740465968
• 13881393840 is an abundant number, because the sum of its proper divisors (29740465968) is greater than itself. Its abundance is 15859072128

Bases of 13881393840

• Binary: 1100111011011001010100001010110000₂
• Hexadecimal: 0x33B6542B0
• Base-36: 6DKMG1C

Squares and roots of 13881393840

• 13881393840 squared (13881393840²) is 192693094941189945600
• 13881393840 cubed (13881393840³) is 2674848741127169273121775104000
• The square root of 13881393840 is 117819.3271072281
• The cube root of 13881393840 is 2403.3168168021

Scales and comparisons

• 13,881,393,840 seconds is equal to 441 years, 20 weeks, 6 hours, 44 minutes.
• To count from 1 to 13,881,393,840 would take you about eight hundred eighty-two 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 13881393840 cubic inches would be around 200.3 feet tall.

Recreational maths with 13881393840

• 13881393840 backwards is 04839318831
• 13881393840 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13881393840's digits is 48
• More coming soon!