1801994355

Names of 1801994355

• Cardinal: 1801994355 can be written as One billion, eight hundred one million, nine hundred ninety-four thousand, three hundred fifty-five.

Scientific notation

• Scientific notation: 1.801994355 × 10⁹

Factors of 1801994355

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 3647

Divisors of 1801994355

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 5 7 9 15 21 35 45 49 63 105 147 241 245 315 441 723 735 1205 1687 2169 2205 3391 3615 5061 8435 10173 10845 11809 15183 16955 23737 25305 30519 35427 50865 59045 71211 75915 106281 118685 152595 166159 177135 213633 356055 498477 531405 817231 830795 1068165 1495431 2451693 2492385 4086155 5720617 7355079 7477155 12258465 17161851 28603085 36775395 40044319 51485553 85809255 120132957 200221595 257427765 360398871 600664785 1801994355
• Sum of all divisors σ(n): 3649561344
• Sum of proper divisors (its aliquot sum) s(n): 1847566989
• 1801994355 is an abundant number, because the sum of its proper divisors (1847566989) is greater than itself. Its abundance is 45572634

Bases of 1801994355

• Binary: 1101011011010000100000001110011₂
• Hexadecimal: 0x6B684073
• Base-36: TSUZQR

Squares and roots of 1801994355

• 1801994355 squared (1801994355²) is 3247183655451866025
• 1801994355 cubed (1801994355³) is 5851406616772527551266288875
• The square root of 1801994355 is 42449.9040634959
• The cube root of 1801994355 is 1216.8894951437

Scales and comparisons

• 1,801,994,355 seconds is equal to 57 years, 15 weeks, 3 days, 9 hours, 59 minutes, 15 seconds.
• To count from 1 to 1,801,994,355 would take you about one hundred fourteen 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 1801994355 cubic inches would be around 101.4 feet tall.

Recreational maths with 1801994355

• 1801994355 backwards is 5534991081
• 1801994355 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1801994355's digits is 45
• More coming soon!