1981313712

Names of 1981313712

• Cardinal: 1981313712 can be written as One billion, nine hundred eighty-one million, three hundred thirteen thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 1.981313712 × 10⁹

Factors of 1981313712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2882

Divisors of 1981313712

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 1129 1741 2258 3387 3482 4516 5223 6774 6964 7903 9032 10161 10446 12187 13548 13928 15669 15806 18064 20322 20892 23709 24374 27096 27856 31338 31612 36561 40644 41784 47418 48748 54192 62676 63224 71127 73122 81288 83568 94836 97496 109683 125352 126448 142254 146244 162576 189672 194992 219366 250704 284508 292488 379344 438732 569016 584976 877464 1138032 1754928 1965589 3931178 5896767 7862356 11793534 13759123 15724712 17690301 23587068 27518246 31449424 35380602 41277369 47174136 55036492 70761204 82554738 94348272 110072984 123832107 141522408 165109476 220145968 247664214 283044816 330218952 495328428 660437904 990656856 1981313712
• Sum of all divisors σ(n): 6346315040
• Sum of proper divisors (its aliquot sum) s(n): 4365001328
• 1981313712 is an abundant number, because the sum of its proper divisors (4365001328) is greater than itself. Its abundance is 2383687616

Bases of 1981313712

• Binary: 1110110000110000111001010110000₂
• Hexadecimal: 0x761872B0
• Base-36: WRMFG0

Squares and roots of 1981313712

• 1981313712 squared (1981313712²) is 3925604025359218944
• 1981313712 cubed (1981313712³) is 7777853083326616219357360128
• The square root of 1981313712 is 44511.9502156443
• The cube root of 1981313712 is 1255.9848910241

Scales and comparisons

• 1,981,313,712 seconds is equal to 62 years, 51 weeks, 6 days, 20 hours, 55 minutes, 12 seconds.
• To count from 1 to 1,981,313,712 would take you about one hundred twenty-five 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 1981313712 cubic inches would be around 104.7 feet tall.

Recreational maths with 1981313712

• 1981313712 backwards is 2173131891
• 1981313712 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1981313712's digits is 36
• More coming soon!