38745945

Names of 38745945

• Cardinal: 38745945 can be written as Thirty-eight million, seven hundred forty-five thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 3.8745945 × 10⁷

Factors of 38745945

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 267

Divisors of 38745945

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 5 7 9 15 21 27 35 45 63 79 81 105 135 173 189 237 315 395 405 519 553 567 711 865 945 1185 1211 1557 1659 2133 2595 2765 2835 3555 3633 4671 4977 6055 6399 7785 8295 10665 10899 13667 14013 14931 18165 23355 24885 31995 32697 41001 44793 54495 68335 70065 74655 95669 98091 123003 163485 205005 223965 287007 369009 478345 490455 615015 861021 1107027 1435035 1845045 2583063 4305105 5535135 7749189 12915315 38745945
• Sum of all divisors σ(n): 80847360
• Sum of proper divisors (its aliquot sum) s(n): 42101415
• 38745945 is an abundant number, because the sum of its proper divisors (42101415) is greater than itself. Its abundance is 3355470

Bases of 38745945

• Binary: 10010011110011011101011001₂
• Hexadecimal: 0x24F3759
• Base-36: N2GK9

Squares and roots of 38745945

• 38745945 squared (38745945²) is 1501248253943025
• 38745945 cubed (38745945³) is 58167282278622479783625
• The square root of 38745945 is 6224.6240850351
• The cube root of 38745945 is 338.3831683947

Scales and comparisons

• 38,745,945 seconds is equal to 1 year, 12 weeks, 10 hours, 45 minutes, 45 seconds.
• To count from 1 to 38,745,945 would take you about forty-four weeks!

  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 38745945 cubic inches would be around 28.2 feet tall.

Recreational maths with 38745945

• 38745945 backwards is 54954783
• 38745945 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 38745945's digits is 45
• More coming soon!