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7895213 = 67117839
BaseRepresentation
bin11110000111100010101101
3112212010012022
4132013202231
54010121323
6441115525
7124052054
oct36074255
915763168
107895213
114502877
122788ba5
131835831
14109739b
15a5e4c8
hex7878ad

7895213 has 4 divisors (see below), whose sum is σ = 8013120. Its totient is φ = 7777308.

The previous prime is 7895207. The next prime is 7895227. The reversal of 7895213 is 3125987.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3125987 = 4097643.

It is a cyclic number.

It is not a de Polignac number, because 7895213 - 26 = 7895149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7895113) 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, 58853 + ... + 58986.

It is an arithmetic number, because the mean of its divisors is an integer number (2003280).

Almost surely, 27895213 is an apocalyptic number.

It is an amenable number.

7895213 is a deficient number, since it is larger than the sum of its proper divisors (117907).

7895213 is a wasteful number, since it uses less digits than its factorization.

7895213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117906.

The product of its digits is 15120, while the sum is 35.

The square root of 7895213 is about 2809.8421663859. The cubic root of 7895213 is about 199.1229344020.

The spelling of 7895213 in words is "seven million, eight hundred ninety-five thousand, two hundred thirteen".

Divisors: 1 67 117839 7895213