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5187205 = 51037441
BaseRepresentation
bin10011110010011010000101
3100202112111201
4103302122011
52311442310
6303102501
762043022
oct23623205
910675451
105187205
112a23251
1218a1a31
1310c806a
14990549
156c6e3a
hex4f2685

5187205 has 4 divisors (see below), whose sum is σ = 6224652. Its totient is φ = 4149760.

The previous prime is 5187181. The next prime is 5187233. The reversal of 5187205 is 5027815.

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 2149156 + 3038049 = 1466^2 + 1743^2 .

It is not a de Polignac number, because 5187205 - 25 = 5187173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518716 + ... + 518725.

It is an arithmetic number, because the mean of its divisors is an integer number (1556163).

Almost surely, 25187205 is an apocalyptic number.

It is an amenable number.

5187205 is a deficient number, since it is larger than the sum of its proper divisors (1037447).

5187205 is a wasteful number, since it uses less digits than its factorization.

5187205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037446.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5187205 is about 2277.5436329520. The cubic root of 5187205 is about 173.1056078320.

The spelling of 5187205 in words is "five million, one hundred eighty-seven thousand, two hundred five".

Divisors: 1 5 1037441 5187205