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8225212 = 2217294397
BaseRepresentation
bin11111011000000110111100
3120110212212111
4133120012330
54101201322
6452143404
7126625132
oct37300674
916425774
108225212
1147087a6
122907b64
13191cab8
141141752
15ac7177
hex7d81bc

8225212 has 48 divisors (see below), whose sum is σ = 16299360. Its totient is φ = 3612672.

The previous prime is 8225207. The next prime is 8225257. The reversal of 8225212 is 2125228.

It is a super-2 number, since 2×82252122 = 135308224889888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 84748 + ... + 84844.

It is an arithmetic number, because the mean of its divisors is an integer number (339570).

Almost surely, 28225212 is an apocalyptic number.

It is an amenable number.

8225212 is a deficient number, since it is larger than the sum of its proper divisors (8074148).

8225212 is a wasteful number, since it uses less digits than its factorization.

8225212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 188 counting only the distinct ones).

The product of its digits is 640, while the sum is 22.

The square root of 8225212 is about 2867.9630402082. The cubic root of 8225212 is about 201.8594257715.

The spelling of 8225212 in words is "eight million, two hundred twenty-five thousand, two hundred twelve".

Divisors: 1 2 4 17 29 34 43 58 68 86 97 116 172 194 388 493 731 986 1247 1462 1649 1972 2494 2813 2924 3298 4171 4988 5626 6596 8342 11252 16684 21199 42398 47821 70907 84796 95642 120959 141814 191284 241918 283628 483836 2056303 4112606 8225212