1811394816

Names of 1811394816

• Cardinal: 1811394816 can be written as One billion, eight hundred eleven million, three hundred ninety-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.811394816 × 10⁹

Factors of 1811394816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 30654

Divisors of 1811394816

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 56 64 66 77 84 88 96 112 128 132 154 168 176 192 224 231 256 264 308 336 352 384 448 462 528 616 672 704 768 896 924 1056 1232 1344 1408 1792 1848 2112 2464 2688 2816 3696 4224 4928 5376 7392 8448 9856 14784 19712 29568 30631 59136 61262 91893 122524 183786 214417 245048 336941 367572 428834 490096 643251 673882 735144 857668 980192 1010823 1286502 1347764 1470288 1715336 1960384 2021646 2358587 2573004 2695528 2940576 3430672 3920768 4043292 4717174 5146008 5391056 5881152 6861344 7075761 7841536 8086584 9434348 10292016 10782112 11762304 13722688 14151522 16173168 18868696 20584032 21564224 23524608 27445376 28303044 32346336 37737392 41168064 43128448 54890752 56606088 64692672 75474784 82336128 86256896 113212176 129385344 150949568 164672256 226424352 258770688 301899136 452848704 603798272 905697408 1811394816
• Sum of all divisors σ(n): 6010733568
• Sum of proper divisors (its aliquot sum) s(n): 4199338752
• 1811394816 is an abundant number, because the sum of its proper divisors (4199338752) is greater than itself. Its abundance is 2387943936

Bases of 1811394816

• Binary: 1101011111101111011000100000000₂
• Hexadecimal: 0x6BF7B100
• Base-36: TYGH6O

Squares and roots of 1811394816

• 1811394816 squared (1811394816²) is 3281151179431673856
• 1811394816 cubed (1811394816³) is 5943460236934819848961130496
• The square root of 1811394816 is 42560.4842077721
• The cube root of 1811394816 is 1219.0018746537

Scales and comparisons

• 1,811,394,816 seconds is equal to 57 years, 31 weeks, 5 hours, 13 minutes, 36 seconds.
• To count from 1 to 1,811,394,816 would take you about one hundred fifteen 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 1811394816 cubic inches would be around 101.6 feet tall.

Recreational maths with 1811394816

• 1811394816 backwards is 6184931181
• 1811394816 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1811394816's digits is 42
• More coming soon!