12818988

Names of 12818988

• Cardinal: 12818988 can be written as Twelve million, eight hundred eighteen thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 1.2818988 × 10⁷

Factors of 12818988

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 68

Divisors of 12818988

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 43 49 52 63 78 84 86 91 98 117 126 129 147 156 169 172 182 196 234 252 258 273 294 301 338 364 387 441 468 507 516 546 559 588 602 637 676 774 819 882 903 1014 1092 1118 1183 1204 1274 1521 1548 1638 1677 1764 1806 1911 2028 2107 2236 2366 2548 2709 3042 3276 3354 3549 3612 3822 3913 4214 4732 5031 5418 5733 6084 6321 6708 7098 7267 7644 7826 8281 8428 10062 10647 10836 11466 11739 12642 14196 14534 15652 16562 18963 20124 21294 21801 22932 23478 24843 25284 27391 29068 33124 35217 37926 42588 43602 46956 49686 50869 54782 65403 70434 74529 75852 82173 87204 99372 101738 109564 130806 140868 149058 152607 164346 203476 246519 261612 298116 305214 328692 356083 457821 493038 610428 712166 915642 986076 1068249 1424332 1831284 2136498 3204747 4272996 6409494 12818988
• Sum of all divisors σ(n): 41765724
• Sum of proper divisors (its aliquot sum) s(n): 28946736
• 12818988 is an abundant number, because the sum of its proper divisors (28946736) is greater than itself. Its abundance is 16127748

Bases of 12818988

• Binary: 110000111001101000101100₂
• Hexadecimal: 0xC39A2C
• Base-36: 7MR70

Squares and roots of 12818988

• 12818988 squared (12818988²) is 164326453344144
• 12818988 cubed (12818988³) is 2106498833501141806272
• The square root of 12818988 is 3580.3614342689
• The cube root of 12818988 is 234.0370311765

Scales and comparisons

• 12,818,988 seconds is equal to 21 weeks, 1 day, 8 hours, 49 minutes, 48 seconds.
• To count from 1 to 12,818,988 would take you about thirty-one weeks!

  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 12818988 cubic inches would be around 19.5 feet tall.

Recreational maths with 12818988

• 12818988 backwards is 88981821
• The number of decimal digits it has is: 8
• The sum of 12818988's digits is 45
• More coming soon!