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53106439 = 411295279
BaseRepresentation
bin1100101010010…
…1011100000111
310200221002100011
43022211130013
5102043401224
65134131051
71213253161
oct312453407
9120832304
1053106439
1127a82721
1215950a87
13b005339
1470a5931
1549e0394
hex32a5707

53106439 has 4 divisors (see below), whose sum is σ = 54401760. Its totient is φ = 51811120.

The previous prime is 53106437. The next prime is 53106457. The reversal of 53106439 is 93460135.

53106439 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 53106439 - 21 = 53106437 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 53106439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53106437) 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, 647599 + ... + 647680.

It is an arithmetic number, because the mean of its divisors is an integer number (13600440).

Almost surely, 253106439 is an apocalyptic number.

53106439 is a deficient number, since it is larger than the sum of its proper divisors (1295321).

53106439 is a wasteful number, since it uses less digits than its factorization.

53106439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295320.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 53106439 is about 7287.4164832264. The cubic root of 53106439 is about 375.8798634411.

The spelling of 53106439 in words is "fifty-three million, one hundred six thousand, four hundred thirty-nine".

Divisors: 1 41 1295279 53106439