21946100

Names of 21946100

• Cardinal: 21946100 can be written as Twenty-one million, nine hundred forty-six thousand, one hundred.

Scientific notation

• Scientific notation: 2.19461 × 10⁷

Factors of 21946100

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 370

Divisors of 21946100

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 11 20 22 25 44 50 55 71 100 110 142 220 275 281 284 355 550 562 710 781 1100 1124 1405 1420 1562 1775 2810 3091 3124 3550 3905 5620 6182 7025 7100 7810 12364 14050 15455 15620 19525 19951 28100 30910 39050 39902 61820 77275 78100 79804 99755 154550 199510 219461 309100 399020 438922 498775 877844 997550 1097305 1995100 2194610 4389220 5486525 10973050 21946100
• Sum of all divisors σ(n): 52871616
• Sum of proper divisors (its aliquot sum) s(n): 30925516
• 21946100 is an abundant number, because the sum of its proper divisors (30925516) is greater than itself. Its abundance is 8979416

Bases of 21946100

• Binary: 1010011101101111011110100₂
• Hexadecimal: 0x14EDEF4
• Base-36: D2DPW

Squares and roots of 21946100

• 21946100 squared (21946100²) is 481631305210000
• 21946100 cubed (21946100³) is 10569928787269181000000
• The square root of 21946100 is 4684.6664769223
• The cube root of 21946100 is 279.9749127183

Scales and comparisons

• 21,946,100 seconds is equal to 36 weeks, 2 days, 8 minutes, 20 seconds.
• To count from 1 to 21,946,100 would take you about two 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 21946100 cubic inches would be around 23.3 feet tall.

Recreational maths with 21946100

• 21946100 backwards is 00164912
• The number of decimal digits it has is: 8
• The sum of 21946100's digits is 23
• More coming soon!