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52791004 = 2271885393
BaseRepresentation
bin1100100101100…
…0011011011100
310200100001122101
43021120123130
5102003303004
65123254444
71210500430
oct311303334
9120301571
1052791004
1127887732
121581a424
13ac248a6
1470229c0
15497bba4
hex32586dc

52791004 has 12 divisors (see below), whose sum is σ = 105582064. Its totient is φ = 22624704.

The previous prime is 52790999. The next prime is 52791007. The reversal of 52791004 is 40019725.

It is a happy number.

52791004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

52791004 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1885393 = 52791004 / (5 + 2 + 7 + 9 + 1 + 0 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52791007) 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, 942669 + ... + 942724.

Almost surely, 252791004 is an apocalyptic number.

It is an amenable number.

52791004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52791004 is a wasteful number, since it uses less digits than its factorization.

52791004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885404 (or 1885402 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 52791004 is about 7265.7418065880. The cubic root of 52791004 is about 375.1341836839.

The spelling of 52791004 in words is "fifty-two million, seven hundred ninety-one thousand, four".

Divisors: 1 2 4 7 14 28 1885393 3770786 7541572 13197751 26395502 52791004