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20393052 = 2231699421
BaseRepresentation
bin100110111001…
…0110001011100
31102101002000020
41031302301130
520210034202
62005032140
7335223651
oct115626134
942332006
1020393052
1110569669
1269b5650
1342c02c4
1429cbc28
151bcc5bc
hex1372c5c

20393052 has 12 divisors (see below), whose sum is σ = 47583816. Its totient is φ = 6797680.

The previous prime is 20393041. The next prime is 20393053. The reversal of 20393052 is 25039302.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20393053) 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 3 ways as a sum of consecutive naturals, for example, 849699 + ... + 849722.

It is an arithmetic number, because the mean of its divisors is an integer number (3965318).

Almost surely, 220393052 is an apocalyptic number.

It is an amenable number.

20393052 is an abundant number, since it is smaller than the sum of its proper divisors (27190764).

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

20393052 is a wasteful number, since it uses less digits than its factorization.

20393052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699428 (or 1699426 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 20393052 is about 4515.8666942238. The cubic root of 20393052 is about 273.2084173739.

The spelling of 20393052 in words is "twenty million, three hundred ninety-three thousand, fifty-two".

Divisors: 1 2 3 4 6 12 1699421 3398842 5098263 6797684 10196526 20393052