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20293692 = 2231691141
BaseRepresentation
bin100110101101…
…0100000111100
31102012000201020
41031122200330
520143344232
62002544140
7334331166
oct115324074
942160636
1020293692
1110500a51
126968050
134287003
1429a3936
151bace2c
hex135a83c

20293692 has 12 divisors (see below), whose sum is σ = 47351976. Its totient is φ = 6764560.

The previous prime is 20293687. The next prime is 20293703. The reversal of 20293692 is 29639202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845559 + ... + 845582.

It is an arithmetic number, because the mean of its divisors is an integer number (3945998).

Almost surely, 220293692 is an apocalyptic number.

It is an amenable number.

20293692 is an abundant number, since it is smaller than the sum of its proper divisors (27058284).

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

20293692 is a wasteful number, since it uses less digits than its factorization.

20293692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691148 (or 1691146 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 20293692 is about 4504.8520508447. The cubic root of 20293692 is about 272.7639817658.

The spelling of 20293692 in words is "twenty million, two hundred ninety-three thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 1691141 3382282 5073423 6764564 10146846 20293692