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8168228 = 2217120121
BaseRepresentation
bin11111001010001100100100
3120100222200222
4133022030210
54042340403
6451023512
7126300035
oct37121444
916328628
108168228
114679a02
12289ab98
1318ccb93
141128a8c
15ab5338
hex7ca324

8168228 has 12 divisors (see below), whose sum is σ = 15135372. Its totient is φ = 3843840.

The previous prime is 8168207. The next prime is 8168257. The reversal of 8168228 is 8228618.

It can be written as a sum of positive squares in 2 ways, for example, as 6340324 + 1827904 = 2518^2 + 1352^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59993 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (1261281).

Almost surely, 28168228 is an apocalyptic number.

It is an amenable number.

8168228 is a deficient number, since it is larger than the sum of its proper divisors (6967144).

8168228 is a wasteful number, since it uses less digits than its factorization.

8168228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120142 (or 120140 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 8168228 is about 2858.0111966191. The cubic root of 8168228 is about 201.3921865965.

The spelling of 8168228 in words is "eight million, one hundred sixty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 120121 240242 480484 2042057 4084114 8168228