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8274213 = 32941977
BaseRepresentation
bin11111100100000100100101
3120120101002100
4133210010211
54104233323
6453202313
7130221033
oct37440445
916511070
108274213
1147415a2
122930399
1319391ac
141155553
15ad6943
hex7e4125

8274213 has 12 divisors (see below), whose sum is σ = 11976588. Its totient is φ = 5504640.

The previous prime is 8274157. The next prime is 8274229. The reversal of 8274213 is 3124728.

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 1633284 = 2577^2 + 1278^2 .

It is not a de Polignac number, because 8274213 - 214 = 8257829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8274283) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7981 + ... + 8957.

It is an arithmetic number, because the mean of its divisors is an integer number (998049).

Almost surely, 28274213 is an apocalyptic number.

It is an amenable number.

8274213 is a deficient number, since it is larger than the sum of its proper divisors (3702375).

8274213 is a wasteful number, since it uses less digits than its factorization.

8274213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1924 (or 1921 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 8274213 is about 2876.4931774645. The cubic root of 8274213 is about 202.2594858249.

The spelling of 8274213 in words is "eight million, two hundred seventy-four thousand, two hundred thirteen".

Divisors: 1 3 9 941 977 2823 2931 8469 8793 919357 2758071 8274213