29705515138

Names of 29705515138

• Cardinal: 29705515138 can be written as Twenty-nine billion, seven hundred five million, five hundred fifteen thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 2.9705515138 × 10¹⁰

Factors of 29705515138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1403

Divisors of 29705515138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 13 26 61 122 127 139 254 278 793 1061 1586 1651 1807 2122 3302 3614 7747 8479 13793 15494 16958 17653 27586 35306 64721 100711 110227 129442 134747 147479 201422 220454 229489 269494 294958 458978 841373 1076833 1682746 1751711 1917227 2153666 3503422 3834454 8219567 8996219 13998829 16439134 17992438 18729833 27997658 37459666 106854371 116950847 213708742 233901694 243487829 486975658 1142519813 2285039626 14852757569 29705515138
• Sum of all divisors σ(n): 49556828160
• Sum of proper divisors (its aliquot sum) s(n): 19851313022
• 29705515138 is a deficient number, because the sum of its proper divisors (19851313022) is less than itself. Its deficiency is 9854202116

Bases of 29705515138

• Binary: 11011101010100101100011000010000010₂
• Hexadecimal: 0x6EA963082
• Base-36: DN9WA6A

Squares and roots of 29705515138

• 29705515138 squared (29705515138²) is 882417629613947159044
• 29705515138 cubed (29705515138³) is 26212670254535184428913635608072
• The square root of 29705515138 is 172352.8796916373
• The cube root of 29705515138 is 3097.0320236395

Scales and comparisons

• 29,705,515,138 seconds is equal to 944 years, 28 weeks, 1 day, 19 hours, 58 minutes, 58 seconds.
• To count from 1 to 29,705,515,138 would take you about one thousand, eight hundred eighty-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 29705515138 cubic inches would be around 258.1 feet tall.

Recreational maths with 29705515138

• 29705515138 backwards is 83151550792
• The number of decimal digits it has is: 11
• The sum of 29705515138's digits is 46
• More coming soon!