72420048

Names of 72420048

• Cardinal: 72420048 can be written as Seventy-two million, four hundred twenty thousand and forty-eight.

Scientific notation

• Scientific notation: 7.2420048 × 10⁷

Factors of 72420048

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3221

Divisors of 72420048

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 53 54 72 106 108 144 159 212 216 318 424 432 477 636 848 954 1272 1431 1908 2544 2862 3163 3816 5724 6326 7632 9489 11448 12652 18978 22896 25304 28467 37956 50608 56934 75912 85401 113868 151824 167639 170802 227736 335278 341604 455472 502917 670556 683208 1005834 1341112 1366416 1508751 2011668 2682224 3017502 4023336 4526253 6035004 8046672 9052506 12070008 18105012 24140016 36210024 72420048
• Sum of all divisors σ(n): 211861440
• Sum of proper divisors (its aliquot sum) s(n): 139441392
• 72420048 is an abundant number, because the sum of its proper divisors (139441392) is greater than itself. Its abundance is 67021344

Bases of 72420048

• Binary: 100010100010000101011010000₂
• Hexadecimal: 0x4510AD0
• Base-36: 1747O0

Squares and roots of 72420048

• 72420048 squared (72420048²) is 5244663352322304
• 72420048 cubed (72420048³) is 379818771719022167150592
• The square root of 72420048 is 8509.9969447703
• The cube root of 72420048 is 416.8242103623

Scales and comparisons

• 72,420,048 seconds is equal to 2 years, 15 weeks, 5 days, 4 hours, 40 minutes, 48 seconds.
• To count from 1 to 72,420,048 would take you about three 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 72420048 cubic inches would be around 34.7 feet tall.

Recreational maths with 72420048

• 72420048 backwards is 84002427
• 72420048 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 72420048's digits is 27
• More coming soon!