129608136

Names of 129608136

• Cardinal: 129608136 can be written as One hundred twenty-nine million, six hundred eight thousand, one hundred thirty-six.

Scientific notation

• Scientific notation: 1.29608136 × 10⁸

Factors of 129608136

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2190

Divisors of 129608136

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 17 18 21 24 28 34 36 42 49 51 56 63 68 72 84 98 102 119 126 136 147 153 168 196 204 238 252 294 306 357 392 408 441 476 504 588 612 714 833 882 952 1071 1176 1224 1428 1666 1764 2142 2161 2499 2856 3332 3528 4284 4322 4998 6483 6664 7497 8568 8644 9996 12966 14994 15127 17288 19449 19992 25932 29988 30254 36737 38898 45381 51864 59976 60508 73474 77796 90762 105889 110211 121016 136143 146948 155592 181524 211778 220422 257159 272286 293896 317667 330633 363048 423556 440844 514318 544572 635334 661266 771477 847112 881688 953001 1028636 1089144 1270668 1322532 1542954 1800113 1906002 2057272 2314431 2541336 2645064 3085908 3600226 3812004 4628862 5400339 6171816 7200452 7624008 9257724 10800678 14400904 16201017 18515448 21601356 32402034 43202712 64804068 129608136
• Sum of all divisors σ(n): 432551340
• Sum of proper divisors (its aliquot sum) s(n): 302943204
• 129608136 is an abundant number, because the sum of its proper divisors (302943204) is greater than itself. Its abundance is 173335068

Bases of 129608136

• Binary: 111101110011010100111001000₂
• Hexadecimal: 0x7B9A9C8
• Base-36: 255YA0

Squares and roots of 129608136

• 129608136 squared (129608136²) is 16798268917394496
• 129608136 cubed (129608136³) is 2177192322410238603219456
• The square root of 129608136 is 11384.5569083737
• The cube root of 129608136 is 506.0701887251

Scales and comparisons

• 129,608,136 seconds is equal to 4 years, 6 weeks, 2 days, 2 hours, 15 minutes, 36 seconds.
• To count from 1 to 129,608,136 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 129608136 cubic inches would be around 42.2 feet tall.

Recreational maths with 129608136

• 129608136 backwards is 631806921
• 129608136 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 129608136's digits is 36
• More coming soon!