72189780988

Names of 72189780988

• Cardinal: 72189780988 can be written as Seventy-two billion, one hundred eighty-nine million, seven hundred eighty thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 7.2189780988 × 10¹⁰

Factors of 72189780988

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 660

Divisors of 72189780988

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 13 26 43 52 86 172 193 386 409 559 772 818 1118 1636 2236 2509 5018 5317 8299 10036 10634 16598 17587 21268 33196 35174 70348 78937 107887 157874 167281 215774 228631 315748 334562 431548 457262 669124 914524 1026181 2052362 2174653 3394291 4104724 4349306 6788582 7193083 8698612 13577164 14386166 28772332 32285233 44125783 64570466 88251566 93510079 129140932 176503132 187020158 374040316 419708029 839416058 1388265019 1678832116 2776530038 5553060076 18047445247 36094890494 72189780988
• Sum of all divisors σ(n): 140278216848
• Sum of proper divisors (its aliquot sum) s(n): 68088435860
• 72189780988 is a deficient number, because the sum of its proper divisors (68088435860) is less than itself. Its deficiency is 4101345128

Bases of 72189780988

• Binary: 1000011001110110110001010001111111100₂
• Hexadecimal: 0x10CED8A3FC
• Base-36: X5VXJI4

Squares and roots of 72189780988

• 72189780988 squared (72189780988²) is 5211364479095406256144
• 72189780988 cubed (72189780988³) is 376207260394540081987920389390272
• The square root of 72189780988 is 268681.5605656629
• The cube root of 72189780988 is 4163.8196278393

Scales and comparisons

• 72,189,780,988 seconds is equal to 2,295 years, 21 weeks, 2 days, 20 hours, 56 minutes, 28 seconds.
• To count from 1 to 72,189,780,988 would take you about four thousand, five hundred ninety 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 72189780988 cubic inches would be around 347 feet tall.

Recreational maths with 72189780988

• 72189780988 backwards is 88908798127
• The number of decimal digits it has is: 11
• The sum of 72189780988's digits is 67
• More coming soon!