72139828888922731876

Names of 72139828888922731876

• Cardinal: 72139828888922731876 can be written as Seventy-two quintillion, one hundred thirty-nine quadrillion, eight hundred twenty-eight trillion, eight hundred eighty-eight billion, nine hundred twenty-two million, seven hundred thirty-one thousand, eight hundred seventy-six.

Scientific notation

• Scientific notation: 7.2139828888922731876 × 10¹⁹

Factors of 72139828888922731876

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 335324

Divisors of 72139828888922731876

• Number of divisors d(n): 18
• Complete list of divisors:
  1 2 4 13183 26366 52732 322139 644278 1288556 4246758437 8493516874 16987033748 103773535321 207547070642 415094141284 1368046516136743 2736093032273486 5472186064546972
• Sum of all divisors σ(n): 72143933784615545672
• Sum of proper divisors (its aliquot sum) s(n): 4104895692813796
• 72139828888922731876 is a deficient number, because the sum of its proper divisors (4104895692813796) is less than itself. Its deficiency is 72135723993229918080

Bases of 72139828888922731876

• Binary: 111110100100100100001010000010100101001001101100111011010101100100₂
• Hexadecimal: 0x3E924282949B3B564
• Base-36: F831N3CM6TZ6S

Squares and roots of 72139828888922731876

• 72139828888922731876 squared (72139828888922731876²) is 5204154912123050755833137901890986479376
• 72139828888922731876 cubed (72139828888922731876³) is 375426844872003597951399553889296225530884754915493251789376
• 72139828888922731876 is a perfect square number. Its square root is 8493516874
• The cube root of 72139828888922731876 is 4162859.0139323717

Scales and comparisons

• 72,139,828,888,922,731,876 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 72,139,828,888,922,731,876 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 72139828888922731876 cubic inches would be around 346904.9 feet tall.

Recreational maths with 72139828888922731876

• 72139828888922731876 backwards is 67813722988882893127
• The number of decimal digits it has is: 20
• The sum of 72139828888922731876's digits is 109
• More coming soon!