129429495

Names of 129429495

• Cardinal: 129429495 can be written as One hundred twenty-nine million, four hundred twenty-nine thousand, four hundred ninety-five.

Scientific notation

• Scientific notation: 1.29429495 × 10⁸

Factors of 129429495

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 113

Divisors of 129429495

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 5 9 13 15 27 31 39 45 61 65 81 93 117 135 155 169 183 195 279 305 351 403 405 465 507 549 585 793 837 845 915 1053 1209 1395 1521 1647 1755 1891 2015 2379 2511 2535 2745 3627 3965 4185 4563 4941 5239 5265 5673 6045 7137 7605 8235 9455 10309 10881 11895 12555 13689 15717 17019 18135 21411 22815 24583 24705 26195 28365 30927 32643 35685 47151 51057 51545 54405 64233 68445 73749 78585 85095 92781 107055 122915 141453 153171 154635 163215 221247 235755 255285 278343 319579 321165 368745 424359 463905 663741 707265 765855 835029 958737 1106235 1391715 1597895 1991223 2121795 2876211 3318705 4175145 4793685 8628633 9956115 14381055 25885899 43143165 129429495
• Sum of all divisors σ(n): 263590272
• Sum of proper divisors (its aliquot sum) s(n): 134160777
• 129429495 is an abundant number, because the sum of its proper divisors (134160777) is greater than itself. Its abundance is 4731282

Bases of 129429495

• Binary: 111101101101110111111110111₂
• Hexadecimal: 0x7B6EFF7
• Base-36: 2524FR

Squares and roots of 129429495

• 129429495 squared (129429495²) is 16751994175955025
• 129429495 cubed (129429495³) is 2168202146436800028462375
• The square root of 129429495 is 11376.7084431307
• The cube root of 129429495 is 505.8375735651

Scales and comparisons

• 129,429,495 seconds is equal to 4 years, 6 weeks, 38 minutes, 15 seconds.
• To count from 1 to 129,429,495 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 129429495 cubic inches would be around 42.2 feet tall.

Recreational maths with 129429495

• 129429495 backwards is 594924921
• 129429495 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 129429495's digits is 45
• More coming soon!