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20259696 = 243422077
BaseRepresentation
bin100110101001…
…0001101110000
31102010022002010
41031102031300
520141302241
62002122520
7334130112
oct115221560
942108063
1020259696
1110488456
126950440
1342746b2
1429953b2
151ba2d16
hex1352370

20259696 has 20 divisors (see below), whose sum is σ = 52337672. Its totient is φ = 6753216.

The previous prime is 20259671. The next prime is 20259713. The reversal of 20259696 is 69695202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210991 + ... + 211086.

Almost surely, 220259696 is an apocalyptic number.

It is an amenable number.

20259696 is an abundant number, since it is smaller than the sum of its proper divisors (32077976).

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

20259696 is a wasteful number, since it uses less digits than its factorization.

20259696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422088 (or 422082 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 20259696 is about 4501.0772044034. The cubic root of 20259696 is about 272.6115851963.

The spelling of 20259696 in words is "twenty million, two hundred fifty-nine thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 422077 844154 1266231 1688308 2532462 3376616 5064924 6753232 10129848 20259696