19791121788

Names of 19791121788

• Cardinal: 19791121788 can be written as Nineteen billion, seven hundred ninety-one million, one hundred twenty-one thousand, seven hundred eighty-eight.

Scientific notation

• Scientific notation: 1.9791121788 × 10¹⁰

Factors of 19791121788

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4917

Divisors of 19791121788

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 4889 9778 14667 19556 29334 44001 58668 88002 112447 176004 224894 337341 449788 674682 1012023 1349364 2024046 4048092 23902321 47804642 71706963 95609284 143413926 215120889 286827852 430241778 549753383 860483556 1099506766 1649260149 2199013532 3298520298 4947780447 6597040596 9895560894 19791121788
• Sum of all divisors σ(n): 52213348824
• Sum of proper divisors (its aliquot sum) s(n): 32422227036
• 19791121788 is an abundant number, because the sum of its proper divisors (32422227036) is greater than itself. Its abundance is 12631105248

Bases of 19791121788

• Binary: 10010011011101001001000110101111100₂
• Hexadecimal: 0x49BA48D7C
• Base-36: 93B4FB0

Squares and roots of 19791121788

• 19791121788 squared (19791121788²) is 391688501627448316944
• 19791121788 cubed (19791121788³) is 7751954838668065844314327975872
• The square root of 19791121788 is 140680.9219048553
• The cube root of 19791121788 is 2704.9348154257

Scales and comparisons

• 19,791,121,788 seconds is equal to 629 years, 15 weeks, 2 days, 21 hours, 49 minutes, 48 seconds.
• To count from 1 to 19,791,121,788 would take you about one thousand, two hundred fifty-eight 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 19791121788 cubic inches would be around 225.4 feet tall.

Recreational maths with 19791121788

• 19791121788 backwards is 88712119791
• The number of decimal digits it has is: 11
• The sum of 19791121788's digits is 54
• More coming soon!