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52660823 = 232289601
BaseRepresentation
bin1100100011100…
…0101001010111
310200002110001212
43020320221113
5101440121243
65120412035
71206416045
oct310705127
9120073055
1052660823
11277a8946
121577701b
13abaa567
146dcb395
154953318
hex3238a57

52660823 has 4 divisors (see below), whose sum is σ = 54950448. Its totient is φ = 50371200.

The previous prime is 52660793. The next prime is 52660831. The reversal of 52660823 is 32806625.

52660823 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 is a cyclic number.

It is not a de Polignac number, because 52660823 - 26 = 52660759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52660823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52662823) 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, 1144778 + ... + 1144823.

It is an arithmetic number, because the mean of its divisors is an integer number (13737612).

Almost surely, 252660823 is an apocalyptic number.

52660823 is a deficient number, since it is larger than the sum of its proper divisors (2289625).

52660823 is a wasteful number, since it uses less digits than its factorization.

52660823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289624.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 52660823 is about 7256.7777284412. Note that the first 4 decimals coincide. The cubic root of 52660823 is about 374.8255733987.

The spelling of 52660823 in words is "fifty-two million, six hundred sixty thousand, eight hundred twenty-three".

Divisors: 1 23 2289601 52660823