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52798637 = 73723269
BaseRepresentation
bin1100100101101…
…0010010101101
310200100110010002
43021122102231
5102004024022
65123354045
71210531613
oct311322255
9120313102
1052798637
1127892441
1215822925
13ac281c8
1470256b3
15497e092
hex325a4ad

52798637 has 4 divisors (see below), whose sum is σ = 53521980. Its totient is φ = 52075296.

The previous prime is 52798631. The next prime is 52798679. The reversal of 52798637 is 73689725.

52798637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39300361 + 13498276 = 6269^2 + 3674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52798637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52798591 and 52798600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52798631) 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, 361562 + ... + 361707.

It is an arithmetic number, because the mean of its divisors is an integer number (13380495).

Almost surely, 252798637 is an apocalyptic number.

It is an amenable number.

52798637 is a deficient number, since it is larger than the sum of its proper divisors (723343).

52798637 is an equidigital number, since it uses as much as digits as its factorization.

52798637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723342.

The product of its digits is 635040, while the sum is 47.

The square root of 52798637 is about 7266.2670608780. The cubic root of 52798637 is about 375.1522629084.

It can be divided in two parts, 52798 and 637, that added together give a palindrome (53435).

The spelling of 52798637 in words is "fifty-two million, seven hundred ninety-eight thousand, six hundred thirty-seven".

Divisors: 1 73 723269 52798637