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51928708 = 2213998629
BaseRepresentation
bin1100011000010…
…1111010000100
310121201020210111
43012011322010
5101243204313
65053002404
71200246436
oct306057204
9117636714
1051928708
1127348897
1215483404
13a9b2260
146c7a656
15485b43d
hex3185e84

51928708 has 12 divisors (see below), whose sum is σ = 97865740. Its totient is φ = 23967072.

The previous prime is 51928699. The next prime is 51928739. The reversal of 51928708 is 80782915.

It can be written as a sum of positive squares in 2 ways, for example, as 25220484 + 26708224 = 5022^2 + 5168^2 .

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, 499263 + ... + 499366.

Almost surely, 251928708 is an apocalyptic number.

It is an amenable number.

51928708 is a deficient number, since it is larger than the sum of its proper divisors (45937032).

51928708 is a wasteful number, since it uses less digits than its factorization.

51928708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998646 (or 998644 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 51928708 is about 7206.1576446814. The cubic root of 51928708 is about 373.0804619093.

The spelling of 51928708 in words is "fifty-one million, nine hundred twenty-eight thousand, seven hundred eight".

Divisors: 1 2 4 13 26 52 998629 1997258 3994516 12982177 25964354 51928708