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20294328 = 2331749741
BaseRepresentation
bin100110101101…
…0101010111000
31102012001120210
41031122222320
520143404303
62002551120
7334333065
oct115325270
942161523
1020294328
111050147a
1269684a0
1342873a2
1429a3c6c
151bad203
hex135aab8

20294328 has 32 divisors (see below), whose sum is σ = 53721360. Its totient is φ = 6366720.

The previous prime is 20294327. The next prime is 20294333. The reversal of 20294328 is 82349202.

It is a junction number, because it is equal to n+sod(n) for n = 20294295 and 20294304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20294321) 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 7 ways as a sum of consecutive naturals, for example, 24463 + ... + 25278.

Almost surely, 220294328 is an apocalyptic number.

It is an amenable number.

20294328 is an abundant number, since it is smaller than the sum of its proper divisors (33427032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20294328 is a wasteful number, since it uses less digits than its factorization.

20294328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49767 (or 49763 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20294328 is about 4504.9226408452. The cubic root of 20294328 is about 272.7668311912.

The spelling of 20294328 in words is "twenty million, two hundred ninety-four thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 49741 99482 149223 198964 298446 397928 596892 845597 1193784 1691194 2536791 3382388 5073582 6764776 10147164 20294328