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164565230 = 25232113391
BaseRepresentation
bin10011100111100…
…01000011101110
3102110122210001112
421303301003232
5314112041410
624155112022
74035532004
oct1163610356
9373583045
10164565230
1184990325
1247142612
132812b69b
1417bdaa74
15e6aa105
hex9cf10ee

164565230 has 32 divisors (see below), whose sum is σ = 310652928. Its totient is φ = 62647200.

The previous prime is 164565229. The next prime is 164565293. The reversal of 164565230 is 32565461.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46835 + ... + 50225.

It is an arithmetic number, because the mean of its divisors is an integer number (9707904).

Almost surely, 2164565230 is an apocalyptic number.

164565230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164565230 is a deficient number, since it is larger than the sum of its proper divisors (146087698).

164565230 is a wasteful number, since it uses less digits than its factorization.

164565230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 164565230 is about 12828.2980164946. The cubic root of 164565230 is about 547.9984881945.

The spelling of 164565230 in words is "one hundred sixty-four million, five hundred sixty-five thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 211 230 422 1055 2110 3391 4853 6782 9706 16955 24265 33910 48530 77993 155986 389965 715501 779930 1431002 3577505 7155010 16456523 32913046 82282615 164565230