29720142

Names of 29720142

• Cardinal: 29720142 can be written as Twenty-nine million, seven hundred twenty thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 2.9720142 × 10⁷

Factors of 29720142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 456

Divisors of 29720142

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 9 18 19 27 38 54 57 83 114 166 171 249 342 349 498 513 698 747 1026 1047 1494 1577 2094 2241 3141 3154 4482 4731 6282 6631 9423 9462 13262 14193 18846 19893 28386 28967 39786 42579 57934 59679 85158 86901 119358 173802 179037 260703 358074 521406 550373 782109 1100746 1564218 1651119 3302238 4953357 9906714 14860071 29720142
• Sum of all divisors σ(n): 70560000
• Sum of proper divisors (its aliquot sum) s(n): 40839858
• 29720142 is an abundant number, because the sum of its proper divisors (40839858) is greater than itself. Its abundance is 11119716

Bases of 29720142

• Binary: 1110001010111111001001110₂
• Hexadecimal: 0x1C57E4E
• Base-36: HP07I

Squares and roots of 29720142

• 29720142 squared (29720142²) is 883286840500164
• 29720142 cubed (29720142³) is 26251410326396225103288
• The square root of 29720142 is 5451.6182918469
• The cube root of 29720142 is 309.7540261775

Scales and comparisons

• 29,720,142 seconds is equal to 49 weeks, 23 hours, 35 minutes, 42 seconds.
• To count from 1 to 29,720,142 would take you about twenty-one weeks!

  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 29720142 cubic inches would be around 25.8 feet tall.

Recreational maths with 29720142

• 29720142 backwards is 24102792
• 29720142 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 29720142's digits is 27
• More coming soon!