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20294413 = 171983757
BaseRepresentation
bin100110101101…
…0101100001101
31102012001200221
41031122230031
520143410123
62002551341
7334333246
oct115325415
942161627
1020294413
1110501547
126968551
134287439
1429a3ccd
151bad25d
hex135ab0d

20294413 has 16 divisors (see below), whose sum is σ = 22921920. Its totient is φ = 17853696.

The previous prime is 20294411. The next prime is 20294431. The reversal of 20294413 is 31449202.

It is a cyclic number.

It is not a de Polignac number, because 20294413 - 21 = 20294411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20294411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26431 + ... + 27187.

It is an arithmetic number, because the mean of its divisors is an integer number (1432620).

Almost surely, 220294413 is an apocalyptic number.

It is an amenable number.

20294413 is a deficient number, since it is larger than the sum of its proper divisors (2627507).

20294413 is a wasteful number, since it uses less digits than its factorization.

20294413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20294413 is about 4504.9320749596. The cubic root of 20294413 is about 272.7672120061.

The spelling of 20294413 in words is "twenty million, two hundred ninety-four thousand, four hundred thirteen".

Divisors: 1 17 19 83 323 757 1411 1577 12869 14383 26809 62831 244511 1068127 1193789 20294413