72147903800947

Names of 72147903800947

• Cardinal: 72147903800947 can be written as Seventy-two trillion, one hundred forty-seven billion, nine hundred three million, eight hundred thousand, nine hundred forty-seven.

Scientific notation

• Scientific notation: 7.2147903800947 × 10¹³

Factors of 72147903800947

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3799303

Divisors of 72147903800947

• Number of divisors d(n): 32
• Complete list of divisors:
  1 13 43 61 557 559 793 2623 7241 23951 33977 34099 311363 441701 1461011 3798629 18993143 49382177 163341047 231716369 2115836353 2123433611 3012312797 9963803867 27505872589 90980963179 129066017533 129529450271 1182752521327 1677858227929 5549838753919 72147903800947
• Sum of all divisors σ(n): 80953120543680
• Sum of proper divisors (its aliquot sum) s(n): 8805216742733
• 72147903800947 is a deficient number, because the sum of its proper divisors (8805216742733) is less than itself. Its deficiency is 63342687058214

Bases of 72147903800947

• Binary: 10000011001111000111110001011010110011001110011₂
• Hexadecimal: 0x419E3E2D6673
• Base-36: PKOAF4AR7

Squares and roots of 72147903800947

• 72147903800947 squared (72147903800947²) is 5205320022870702569798096809
• 72147903800947 cubed (72147903800947³) is 375552928263218686905864429332417771878123
• The square root of 72147903800947 is 8493992.2180884413
• The cube root of 72147903800947 is 41630.1433019659

Scales and comparisons

• 72,147,903,800,947 seconds is equal to 2,294,080 years, 8 weeks, 6 days, 21 hours, 9 minutes, 7 seconds.
• To count from 1 to 72,147,903,800,947 would take you about five million, seven hundred thirty-five thousand, two hundred 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 72147903800947 cubic inches would be around 3469.2 feet tall.

Recreational maths with 72147903800947

• 72147903800947 backwards is 74900830974127
• 72147903800947 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 72147903800947's digits is 61
• More coming soon!