428121148

Names of 428121148

• Cardinal: 428121148 can be written as Four hundred twenty-eight million, one hundred twenty-one thousand, one hundred forty-eight.

Scientific notation

• Scientific notation: 4.28121148 × 10⁸

Factors of 428121148

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 745

Divisors of 428121148

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 13 14 19 26 28 38 52 76 91 103 133 182 206 247 266 364 412 494 532 601 721 988 1202 1339 1442 1729 1957 2404 2678 2884 3458 3914 4207 5356 6916 7813 7828 8414 9373 11419 13699 15626 16828 18746 22838 25441 27398 31252 37492 45676 50882 54691 54796 61903 79933 101764 109382 123806 148447 159866 178087 218764 247612 296894 319732 356174 433321 593788 712348 804739 866642 1039129 1176157 1609478 1733284 2078258 2352314 3218956 4156516 4704628 5633173 8233099 11266346 15290041 16466198 22532692 30580082 32932396 61160164 107030287 214060574 428121148
• Sum of all divisors σ(n): 981693440
• Sum of proper divisors (its aliquot sum) s(n): 553572292
• 428121148 is an abundant number, because the sum of its proper divisors (553572292) is greater than itself. Its abundance is 125451144

Bases of 428121148

• Binary: 11001100001001001110000111100₂
• Hexadecimal: 0x19849C3C
• Base-36: 72W4E4

Squares and roots of 428121148

• 428121148 squared (428121148²) is 183287717364837904
• 428121148 cubed (428121148³) is 78469347972533938294393792
• The square root of 428121148 is 20691.0886132171
• The cube root of 428121148 is 753.6833024689

Scales and comparisons

• 428,121,148 seconds is equal to 13 years, 31 weeks, 6 days, 2 hours, 32 minutes, 28 seconds.
• To count from 1 to 428,121,148 would take you about twenty 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 428121148 cubic inches would be around 62.8 feet tall.

Recreational maths with 428121148

• 428121148 backwards is 841121824
• The number of decimal digits it has is: 9
• The sum of 428121148's digits is 31
• More coming soon!