129331384

Names of 129331384

• Cardinal: 129331384 can be written as One hundred twenty-nine million, three hundred thirty-one thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 1.29331384 × 10⁸

Factors of 129331384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 682

Divisors of 129331384

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 41 49 52 56 82 91 98 104 164 182 196 287 328 364 392 533 574 619 637 728 1066 1148 1238 1274 2009 2132 2296 2476 2548 3731 4018 4264 4333 4952 5096 7462 8036 8047 8666 14924 16072 16094 17332 25379 26117 29848 30331 32188 34664 50758 52234 56329 60662 64376 101516 104468 112658 121324 177653 203032 208936 225316 242648 329927 355306 394303 450632 659854 710612 788606 1243571 1319708 1421224 1577212 2309489 2487142 2639416 3154424 4618978 4974284 9237956 9948568 16166423 18475912 32332846 64665692 129331384
• Sum of all divisors σ(n): 311698800
• Sum of proper divisors (its aliquot sum) s(n): 182367416
• 129331384 is an abundant number, because the sum of its proper divisors (182367416) is greater than itself. Its abundance is 53036032

Bases of 129331384

• Binary: 111101101010111000010111000₂
• Hexadecimal: 0x7B570B8
• Base-36: 2500QG

Squares and roots of 129331384

• 129331384 squared (129331384²) is 16726606887355456
• 129331384 cubed (129331384³) is 2163275218365613224431104
• The square root of 129331384 is 11372.3957018741
• The cube root of 129331384 is 505.7097284775

Scales and comparisons

• 129,331,384 seconds is equal to 4 years, 5 weeks, 5 days, 21 hours, 23 minutes, 4 seconds.
• To count from 1 to 129,331,384 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 129331384 cubic inches would be around 42.1 feet tall.

Recreational maths with 129331384

• 129331384 backwards is 483133921
• The number of decimal digits it has is: 9
• The sum of 129331384's digits is 34
• More coming soon!