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5115805 = 53727653
BaseRepresentation
bin10011100000111110011101
3100121220120021
4103200332131
52302201210
6301352141
761324612
oct23407635
910556507
105115805
112984642
121868651
1310a1706
14972509
156b0bda
hex4e0f9d

5115805 has 8 divisors (see below), whose sum is σ = 6305112. Its totient is φ = 3981888.

The previous prime is 5115797. The next prime is 5115823. The reversal of 5115805 is 5085115.

5115805 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 191844 + 4923961 = 438^2 + 2219^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5115805 - 23 = 5115797 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 5115805.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13642 + ... + 14011.

It is an arithmetic number, because the mean of its divisors is an integer number (788139).

Almost surely, 25115805 is an apocalyptic number.

It is an amenable number.

5115805 is a deficient number, since it is larger than the sum of its proper divisors (1189307).

5115805 is a wasteful number, since it uses less digits than its factorization.

5115805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27695.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 5115805 is about 2261.8145370476. The cubic root of 5115805 is about 172.3076901870.

The spelling of 5115805 in words is "five million, one hundred fifteen thousand, eight hundred five".

Divisors: 1 5 37 185 27653 138265 1023161 5115805