128238448

Names of 128238448

• Cardinal: 128238448 can be written as One hundred twenty-eight million, two hundred thirty-eight thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 1.28238448 × 10⁸

Factors of 128238448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 948

Divisors of 128238448

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 13 16 19 26 37 38 52 74 76 104 148 152 208 247 296 304 481 494 592 703 877 962 988 1406 1754 1924 1976 2812 3508 3848 3952 5624 7016 7696 9139 11248 11401 14032 16663 18278 22802 32449 33326 36556 45604 64898 66652 73112 91208 129796 133304 146224 182416 216619 259592 266608 421837 433238 519184 616531 843674 866476 1233062 1687348 1732952 2466124 3374696 3465904 4932248 6749392 8014903 9864496 16029806 32059612 64119224 128238448
• Sum of all divisors σ(n): 289599520
• Sum of proper divisors (its aliquot sum) s(n): 161361072
• 128238448 is an abundant number, because the sum of its proper divisors (161361072) is greater than itself. Its abundance is 33122624

Bases of 128238448

• Binary: 111101001001100001101110000₂
• Hexadecimal: 0x7A4C370
• Base-36: 24CLF4

Squares and roots of 128238448

• 128238448 squared (128238448²) is 16445099545448704
• 128238448 cubed (128238448³) is 2108894042913847264571392
• The square root of 128238448 is 11324.2416081607
• The cube root of 128238448 is 504.2811692241

Scales and comparisons

• 128,238,448 seconds is equal to 4 years, 4 weeks, 5 hours, 47 minutes, 28 seconds.
• To count from 1 to 128,238,448 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 128238448 cubic inches would be around 42 feet tall.

Recreational maths with 128238448

• 128238448 backwards is 844832821
• The number of decimal digits it has is: 9
• The sum of 128238448's digits is 40
• More coming soon!