129445316

Names of 129445316

• Cardinal: 129445316 can be written as One hundred twenty-nine million, four hundred forty-five thousand, three hundred sixteen.

Scientific notation

• Scientific notation: 1.29445316 × 10⁸

Factors of 129445316

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2972

Divisors of 129445316

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 11 13 14 22 26 28 44 52 77 91 121 143 154 182 242 286 308 364 484 572 847 1001 1573 1694 2002 2939 3146 3388 4004 5878 6292 11011 11756 20573 22022 32329 38207 41146 44044 64658 76414 82292 129316 152828 226303 267449 355619 420277 452606 534898 711238 840554 905212 1069796 1422476 1681108 2489333 2941939 4623047 4978666 5883878 9246094 9957332 11767756 18492188 32361329 64722658 129445316
• Sum of all divisors σ(n): 306559680
• Sum of proper divisors (its aliquot sum) s(n): 177114364
• 129445316 is an abundant number, because the sum of its proper divisors (177114364) is greater than itself. Its abundance is 47669048

Bases of 129445316

• Binary: 111101101110010110111000100₂
• Hexadecimal: 0x7B72DC4
• Base-36: 252GN8

Squares and roots of 129445316

• 129445316 squared (129445316²) is 16756089834339856
• 129445316 cubed (129445316³) is 2168997343530510311314496
• The square root of 129445316 is 11377.4037460223
• The cube root of 129445316 is 505.8581833191

Scales and comparisons

• 129,445,316 seconds is equal to 4 years, 6 weeks, 5 hours, 1 minute, 56 seconds.
• To count from 1 to 129,445,316 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 129445316 cubic inches would be around 42.2 feet tall.

Recreational maths with 129445316

• 129445316 backwards is 613544921
• The number of decimal digits it has is: 9
• The sum of 129445316's digits is 35
• More coming soon!