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690295 = 5138059
BaseRepresentation
bin10101000100001110111
31022001220111
42220201313
5134042140
622443451
75603344
oct2504167
91261814
10690295
114316a1
12293587
131b2278
1413d7cb
15d97ea
hexa8877

690295 has 4 divisors (see below), whose sum is σ = 828360. Its totient is φ = 552232.

The previous prime is 690293. The next prime is 690323. The reversal of 690295 is 592096.

690295 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 690295 - 21 = 690293 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69025 + ... + 69034.

It is an arithmetic number, because the mean of its divisors is an integer number (207090).

2690295 is an apocalyptic number.

690295 is a deficient number, since it is larger than the sum of its proper divisors (138065).

690295 is a wasteful number, since it uses less digits than its factorization.

690295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138064.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 690295 is about 830.8399364499. The cubic root of 690295 is about 88.3781505892.

The spelling of 690295 in words is "six hundred ninety thousand, two hundred ninety-five".

Divisors: 1 5 138059 690295