Number

Spy number

Spy number

A spy number is a number where the sum of its digits equals the product of its digits. For example, 1124 is a spy number, the sum of its digits is 1+1+2+4=8 and the product of its digits is 1*1*2*4=8.

  1. Is 1241 a spy number?
  2. Is 22 a spy number?

Is 1241 a spy number?

Input : 22 Output: Given number is a SPY number. Explanation: Sum of the number is 4 (2 + 2) Product of the number is as 4 (2 * 2) Input : 1241 Output: Given number is not a SPY number.

Is 22 a spy number?

Input number is 22. Let's check it by using the logic of Spy number. As we notice here both the sum value and product value are the same. Hence, 22 is a Spy number.

Power For a real-world system of oscillating mechanical components, what kinds of frequencies should I seek in DFT?
For a real-world system of oscillating mechanical components, what kinds of frequencies should I seek in DFT?
How do you calculate power spectral density from FFT?Why is FFT needed?What does the amplitude of FFT mean?What is power spectrum analysis? How do y...
Harmonics Harmonics showing up in FFT of processed data
Harmonics showing up in FFT of processed data
Why do harmonics show up in FFT?How do you remove harmonics from FFT?What are harmonics in Fourier transform?What are harmonics in signal processing?...
Filter Examine the operation of a filter, given its z-transform
Examine the operation of a filter, given its z-transform
How do you identify a filter from Z transform?What is the Z transform of an FIR filter?What is the Z transform H z of the impulse response of this fi...