2121690688

Names of 2121690688

• Cardinal: 2121690688 can be written as Two billion, one hundred twenty-one million, six hundred ninety thousand, six hundred eighty-eight.

Scientific notation

• Scientific notation: 2.121690688 × 10⁹

Factors of 2121690688

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 462

Divisors of 2121690688

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 64 73 104 146 181 193 208 292 362 386 416 584 724 772 832 949 1168 1448 1544 1898 2336 2353 2509 2896 3088 3796 4672 4706 5018 5792 6176 7592 9412 10036 11584 12352 13213 14089 15184 18824 20072 26426 28178 30368 34933 37648 40144 52852 56356 60736 69866 75296 80288 105704 112712 139732 150592 160576 171769 183157 211408 225424 279464 343538 366314 422816 450848 454129 558928 687076 732628 845632 901696 908258 1117856 1374152 1465256 1816516 2235712 2550109 2748304 2930512 3633032 5100218 5496608 5861024 7266064 10200436 10993216 11722048 14532128 20400872 29064256 33151417 40801744 66302834 81603488 132605668 163206976 265211336 530422672 1060845344 2121690688
• Sum of all divisors σ(n): 4645544176
• Sum of proper divisors (its aliquot sum) s(n): 2523853488
• 2121690688 is an abundant number, because the sum of its proper divisors (2523853488) is greater than itself. Its abundance is 402162800

Bases of 2121690688

• Binary: 1111110011101100110111001000000₂
• Hexadecimal: 0x7E766E40
• Base-36: Z3770G

Squares and roots of 2121690688

• 2121690688 squared (2121690688²) is 4501571375545913344
• 2121690688 cubed (2121690688³) is 9550942068863115258419740672
• The square root of 2121690688 is 46061.8137723647
• The cube root of 2121690688 is 1284.9730624643

Scales and comparisons

• 2,121,690,688 seconds is equal to 67 years, 24 weeks, 14 hours, 31 minutes, 28 seconds.
• To count from 1 to 2,121,690,688 would take you about one hundred thirty-four 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 2121690688 cubic inches would be around 107.1 feet tall.

Recreational maths with 2121690688

• 2121690688 backwards is 8860961212
• The number of decimal digits it has is: 10
• The sum of 2121690688's digits is 43
• More coming soon!