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8245397 = 48716931
BaseRepresentation
bin11111011101000010010101
3120111220120002
4133131002111
54102323042
6452421045
7130041026
oct37350225
916456502
108245397
114721986
122917785
131929044
141148c4d
15acd132
hex7dd095

8245397 has 4 divisors (see below), whose sum is σ = 8262816. Its totient is φ = 8227980.

The previous prime is 8245343. The next prime is 8245409. The reversal of 8245397 is 7935428.

8245397 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8245397 - 212 = 8241301 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 8245397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245997) 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, 7979 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (2065704).

Almost surely, 28245397 is an apocalyptic number.

It is an amenable number.

8245397 is a deficient number, since it is larger than the sum of its proper divisors (17419).

8245397 is a wasteful number, since it uses less digits than its factorization.

8245397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17418.

The product of its digits is 60480, while the sum is 38.

The square root of 8245397 is about 2871.4799320211. The cubic root of 8245397 is about 202.0244145898.

The spelling of 8245397 in words is "eight million, two hundred forty-five thousand, three hundred ninety-seven".

Divisors: 1 487 16931 8245397