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8378995 = 51675799
BaseRepresentation
bin11111111101101001110011
3120202200211011
4133331221303
54121111440
6455331351
7131135362
oct37755163
916680734
108378995
114803299
122980b57
131974ab1
1411817d9
15b079ea
hex7fda73

8378995 has 4 divisors (see below), whose sum is σ = 10054800. Its totient is φ = 6703192.

The previous prime is 8378989. The next prime is 8379017. The reversal of 8378995 is 5998738.

8378995 is digitally balanced in base 3, 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 8378995 - 23 = 8378987 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837895 + ... + 837904.

It is an arithmetic number, because the mean of its divisors is an integer number (2513700).

Almost surely, 28378995 is an apocalyptic number.

8378995 is a deficient number, since it is larger than the sum of its proper divisors (1675805).

8378995 is a wasteful number, since it uses less digits than its factorization.

8378995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675804.

The product of its digits is 544320, while the sum is 49.

The square root of 8378995 is about 2894.6493742766. The cubic root of 8378995 is about 203.1096902071.

The spelling of 8378995 in words is "eight million, three hundred seventy-eight thousand, nine hundred ninety-five".

Divisors: 1 5 1675799 8378995