129382512

Names of 129382512

• Cardinal: 129382512 can be written as One hundred twenty-nine million, three hundred eighty-two thousand, five hundred twelve.

Scientific notation

• Scientific notation: 1.29382512 × 10⁸

Factors of 129382512

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 22680

Divisors of 129382512

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 34 42 48 51 56 68 84 102 112 119 136 168 204 238 272 336 357 408 476 714 816 952 1428 1904 2856 5712 22651 45302 67953 90604 135906 158557 181208 271812 317114 362416 385067 475671 543624 634228 770134 951342 1087248 1155201 1268456 1540268 1902684 2310402 2536912 2695469 3080536 3805368 4620804 5390938 6161072 7610736 8086407 9241608 10781876 16172814 18483216 21563752 32345628 43127504 64691256 129382512
• Sum of all divisors σ(n): 404474112
• Sum of proper divisors (its aliquot sum) s(n): 275091600
• 129382512 is an abundant number, because the sum of its proper divisors (275091600) is greater than itself. Its abundance is 145709088

Bases of 129382512

• Binary: 111101101100011100001110000₂
• Hexadecimal: 0x7B63870
• Base-36: 25146O

Squares and roots of 129382512

• 129382512 squared (129382512²) is 16739834411430144
• 129382512 cubed (129382512³) is 2165841826614873543241728
• The square root of 129382512 is 11374.6433790249
• The cube root of 129382512 is 505.7763596895

Scales and comparisons

• 129,382,512 seconds is equal to 4 years, 5 weeks, 6 days, 11 hours, 35 minutes, 12 seconds.
• To count from 1 to 129,382,512 would take you about six 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 129382512 cubic inches would be around 42.1 feet tall.

Recreational maths with 129382512

• 129382512 backwards is 215283921
• The number of decimal digits it has is: 9
• The sum of 129382512's digits is 33
• More coming soon!