13387894912

Names of 13387894912

• Cardinal: 13387894912 can be written as Thirteen billion, three hundred eighty-seven million, eight hundred ninety-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.3387894912 × 10¹⁰

Factors of 13387894912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 5194

Divisors of 13387894912

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 14 16 19 28 32 38 56 64 76 112 128 133 152 157 224 266 304 314 448 532 608 628 896 1064 1099 1216 1256 2128 2198 2432 2512 2983 4256 4396 5009 5024 5966 8512 8792 10018 10048 11932 17024 17584 20036 20096 20881 23864 35063 35168 40072 41762 47728 70126 70336 80144 83524 95171 95456 140252 140672 160288 167048 190342 190912 280504 320576 334096 380684 381824 561008 641152 666197 668192 761368 786413 1122016 1332394 1336384 1522736 1572826 2244032 2664788 2672768 3045472 3145652 4488064 5329576 5504891 6090944 6291304 10659152 11009782 12181888 12582608 14941847 21318304 22019564 25165216 29883694 42636608 44039128 50330432 59767388 85273216 88078256 100660864 104592929 119534776 176156512 209185858 239069552 352313024 418371716 478139104 704626048 836743432 956278208 1673486864 1912556416 3346973728 6693947456 13387894912
• Sum of all divisors σ(n): 32296464000
• Sum of proper divisors (its aliquot sum) s(n): 18908569088
• 13387894912 is an abundant number, because the sum of its proper divisors (18908569088) is greater than itself. Its abundance is 5520674176

Bases of 13387894912

• Binary: 1100011101111110110001000010000000₂
• Hexadecimal: 0x31DFB1080
• Base-36: 65ET1TS

Squares and roots of 13387894912

• 13387894912 squared (13387894912²) is 179235730174755487744
• 13387894912 cubed (13387894912³) is 2399589120055213865211975958528
• The square root of 13387894912 is 115706.0711976687
• The cube root of 13387894912 is 2374.4922962479

Scales and comparisons

• 13,387,894,912 seconds is equal to 425 years, 36 weeks, 11 hours, 41 minutes, 52 seconds.
• To count from 1 to 13,387,894,912 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 13387894912 cubic inches would be around 197.9 feet tall.

Recreational maths with 13387894912

• 13387894912 backwards is 21949878331
• The number of decimal digits it has is: 11
• The sum of 13387894912's digits is 55
• More coming soon!