13389129728

Names of 13389129728

• Cardinal: 13389129728 can be written as Thirteen billion, three hundred eighty-nine million, one hundred twenty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.3389129728 × 10¹⁰

Factors of 13389129728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 171

Divisors of 13389129728

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 73 83 104 128 146 166 208 256 292 332 416 512 584 664 832 949 1024 1079 1168 1328 1664 1898 2048 2158 2336 2656 3328 3796 4316 4672 5312 6059 6656 6889 7592 8632 9344 10624 12118 13312 13778 15184 17264 18688 21248 24236 26624 27556 30368 34528 37376 42496 48472 55112 60736 69056 74752 78767 84992 89557 96944 110224 121472 138112 149504 157534 169984 179114 193888 220448 242944 276224 315068 358228 387776 440896 485888 502897 552448 630136 716456 775552 881792 971776 1005794 1104896 1260272 1432912 1551104 1763584 1943552 2011588 2209792 2520544 2865824 3102208 3527168 4023176 5041088 5731648 6204416 6537661 7054336 8046352 10082176 11463296 12408832 13075322 14108672 16092704 20164352 22926592 26150644 32185408 40328704 45853184 52301288 64370816 80657408 91706368 104602576 128741632 161314816 183412736 209205152 257483264 418410304 514966528 836820608 1029933056 1673641216 3347282432 6694564864 13389129728
• Sum of all divisors σ(n): 29582394660
• Sum of proper divisors (its aliquot sum) s(n): 16193264932
• 13389129728 is an abundant number, because the sum of its proper divisors (16193264932) is greater than itself. Its abundance is 2804135204

Bases of 13389129728

• Binary: 1100011110000011011110100000000000₂
• Hexadecimal: 0x31E0DE800
• Base-36: 65FJIM8

Squares and roots of 13389129728

• 13389129728 squared (13389129728²) is 179268794873213353984
• 13389129728 cubed (13389129728³) is 2400253150739674908713761636352
• The square root of 13389129728 is 115711.4070781269
• The cube root of 13389129728 is 2374.5652967945

Scales and comparisons

• 13,389,129,728 seconds is equal to 425 years, 38 weeks, 18 hours, 42 minutes, 8 seconds.
• To count from 1 to 13,389,129,728 would take you about eight hundred fifty-one 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 13389129728 cubic inches would be around 197.9 feet tall.

Recreational maths with 13389129728

• 13389129728 backwards is 82792198331
• The number of decimal digits it has is: 11
• The sum of 13389129728's digits is 53
• More coming soon!