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52656529 = 173304373
BaseRepresentation
bin1100100011011…
…1100110010001
310200002020011211
43020313212101
5101440002104
65120340121
71206400402
oct310674621
9120066154
1052656529
11277a56a2
1215774641
13aba8613
146dc99a9
154951e04
hex3237991

52656529 has 4 divisors (see below), whose sum is σ = 52961076. Its totient is φ = 52351984.

The previous prime is 52656523. The next prime is 52656533. The reversal of 52656529 is 92565625.

It is a happy number.

52656529 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 46785600 + 5870929 = 6840^2 + 2423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52656529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52656491 and 52656500.

It is not an unprimeable number, because it can be changed into a prime (52656523) 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, 152014 + ... + 152359.

It is an arithmetic number, because the mean of its divisors is an integer number (13240269).

Almost surely, 252656529 is an apocalyptic number.

It is an amenable number.

52656529 is a deficient number, since it is larger than the sum of its proper divisors (304547).

52656529 is a wasteful number, since it uses less digits than its factorization.

52656529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304546.

The product of its digits is 162000, while the sum is 40.

The square root of 52656529 is about 7256.4818610674. The cubic root of 52656529 is about 374.8153852761.

The spelling of 52656529 in words is "fifty-two million, six hundred fifty-six thousand, five hundred twenty-nine".

Divisors: 1 173 304373 52656529