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164686106 = 21321728661
BaseRepresentation
bin10011101000011…
…10100100011010
3102110212220212102
421310032210122
5314124423411
624201443402
74036544264
oct1164164432
9373786772
10164686106
1184a63122
12471a0562
1328171700
1417c2cb34
15e6d0d3b
hex9d0e91a

164686106 has 24 divisors (see below), whose sum is σ = 283237884. Its totient is φ = 71535360.

The previous prime is 164686097. The next prime is 164686111. The reversal of 164686106 is 601686461.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 97199881 + 67486225 = 9859^2 + 8215^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 164686106.

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 11 ways as a sum of consecutive naturals, for example, 8585 + ... + 20076.

Almost surely, 2164686106 is an apocalyptic number.

164686106 is a deficient number, since it is larger than the sum of its proper divisors (118551778).

164686106 is a wasteful number, since it uses less digits than its factorization.

164686106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28706 (or 28693 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 164686106 is about 12833.0084547623. The cubic root of 164686106 is about 548.1326268048.

The spelling of 164686106 in words is "one hundred sixty-four million, six hundred eighty-six thousand, one hundred six".

Divisors: 1 2 13 17 26 34 169 221 338 442 2873 5746 28661 57322 372593 487237 745186 974474 4843709 6334081 9687418 12668162 82343053 164686106