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52649349 = 317549783
BaseRepresentation
bin1100100011010…
…1110110000101
310200001212022220
43020311312011
5101434234344
65120242553
71206340434
oct310656605
9120055286
1052649349
11277a0265
1215770459
13aba527c
146dc711b
15494ec19
hex3235d85

52649349 has 4 divisors (see below), whose sum is σ = 70199136. Its totient is φ = 35099564.

The previous prime is 52649347. The next prime is 52649383. The reversal of 52649349 is 94394625.

52649349 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52649349 - 21 = 52649347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52649349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52649347) 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, 8774889 + ... + 8774894.

It is an arithmetic number, because the mean of its divisors is an integer number (17549784).

Almost surely, 252649349 is an apocalyptic number.

It is an amenable number.

52649349 is a deficient number, since it is larger than the sum of its proper divisors (17549787).

52649349 is a wasteful number, since it uses less digits than its factorization.

52649349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17549786.

The product of its digits is 233280, while the sum is 42.

The square root of 52649349 is about 7255.9871141010. The cubic root of 52649349 is about 374.7983484728.

The spelling of 52649349 in words is "fifty-two million, six hundred forty-nine thousand, three hundred forty-nine".

Divisors: 1 3 17549783 52649349