189478128

Names of 189478128

• Cardinal: 189478128 can be written as One hundred eighty-nine million, four hundred seventy-eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.89478128 × 10⁸

Factors of 189478128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4208

Divisors of 189478128

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 139 168 278 336 417 556 834 973 1112 1668 1946 2224 2919 3336 3892 4057 5838 6672 7784 8114 11676 12171 15568 16228 23352 24342 28399 32456 46704 48684 56798 64912 85197 97368 113596 170394 194736 227192 340788 454384 563923 681576 1127846 1363152 1691769 2255692 3383538 3947461 4511384 6767076 7894922 9022768 11842383 13534152 15789844 23684766 27068304 31579688 47369532 63159376 94739064 189478128
• Sum of all divisors σ(n): 563575040
• Sum of proper divisors (its aliquot sum) s(n): 374096912
• 189478128 is an abundant number, because the sum of its proper divisors (374096912) is greater than itself. Its abundance is 184618784

Bases of 189478128

• Binary: 1011010010110011010011110000₂
• Hexadecimal: 0xB4B34F0
• Base-36: 34T69C

Squares and roots of 189478128

• 189478128 squared (189478128²) is 35901960990384384
• 189478128 cubed (189478128³) is 6802636359987059080753152
• The square root of 189478128 is 13765.1054481977
• The cube root of 189478128 is 574.3628764063

Scales and comparisons

• 189,478,128 seconds is equal to 6 years, 1 week, 2 days, 48 minutes, 48 seconds.
• To count from 1 to 189,478,128 would take you about nine 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 189478128 cubic inches would be around 47.9 feet tall.

Recreational maths with 189478128

• 189478128 backwards is 821874981
• 189478128 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 189478128's digits is 48
• More coming soon!