648229428

Names of 648229428

• Cardinal: 648229428 can be written as Six hundred forty-eight million, two hundred twenty-nine thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 6.48229428 × 10⁸

Factors of 648229428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3060

Divisors of 648229428

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 7 9 11 12 14 18 21 22 28 33 36 42 44 49 63 66 77 84 98 99 121 126 132 147 154 196 198 231 242 252 294 308 363 396 441 462 484 539 588 693 726 847 882 924 1078 1089 1386 1452 1617 1694 1764 2156 2178 2541 2772 3037 3234 3388 4356 4851 5082 5929 6074 6468 7623 9111 9702 10164 11858 12148 15246 17787 18222 19404 21259 23716 27333 30492 33407 35574 36444 42518 53361 54666 63777 66814 71148 85036 100221 106722 109332 127554 133628 148813 191331 200442 213444 233849 255108 297626 300663 367477 382662 400884 446439 467698 595252 601326 701547 734954 765324 892878 935396 1102431 1202652 1339317 1403094 1469908 1636943 1785756 2104641 2204862 2572339 2678634 2806188 3273886 3307293 4209282 4409724 4910829 5144678 5357268 6547772 6614586 7717017 8418564 9821658 10289356 13229172 14732487 15434034 18006373 19643316 23151051 29464974 30868068 36012746 46302102 54019119 58929948 72025492 92604204 108038238 162057357 216076476 324114714 648229428
• Sum of all divisors σ(n): 2095828098
• Sum of proper divisors (its aliquot sum) s(n): 1447598670
• 648229428 is an abundant number, because the sum of its proper divisors (1447598670) is greater than itself. Its abundance is 799369242

Bases of 648229428

• Binary: 100110101000110011001000110100₂
• Hexadecimal: 0x26A33234
• Base-36: APXT10

Squares and roots of 648229428

• 648229428 squared (648229428²) is 420201391325207184
• 648229428 cubed (648229428³) is 272386907543543214865810752
• The square root of 648229428 is 25460.3501154245
• The cube root of 648229428 is 865.4518574285

Scales and comparisons

• 648,229,428 seconds is equal to 20 years, 31 weeks, 5 days, 15 hours, 43 minutes, 48 seconds.
• To count from 1 to 648,229,428 would take you about thirty 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 648229428 cubic inches would be around 72.1 feet tall.

Recreational maths with 648229428

• 648229428 backwards is 824922846
• The number of decimal digits it has is: 9
• The sum of 648229428's digits is 45
• More coming soon!