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164256201 = 3324125243
BaseRepresentation
bin10011100101001…
…01100111001001
3102110002002011000
421302211213021
5314022144301
624144325213
74033104024
oct1162454711
9373062130
10164256201
118479a12a
1247013809
1328050b25
1417b5a1bb
15e648786
hex9ca59c9

164256201 has 16 divisors (see below), whose sum is σ = 244361920. Its totient is φ = 109045440.

The previous prime is 164256187. The next prime is 164256223. The reversal of 164256201 is 102652461.

164256201 is a `hidden beast` number, since 16 + 4 + 25 + 620 + 1 = 666.

164256201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-164256201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164256251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6115 + ... + 19128.

It is an arithmetic number, because the mean of its divisors is an integer number (15272620).

Almost surely, 2164256201 is an apocalyptic number.

It is an amenable number.

164256201 is a deficient number, since it is larger than the sum of its proper divisors (80105719).

164256201 is a wasteful number, since it uses less digits than its factorization.

164256201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25493 (or 25487 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 164256201 is about 12816.2475397442. The cubic root of 164256201 is about 547.6552534001.

The spelling of 164256201 in words is "one hundred sixty-four million, two hundred fifty-six thousand, two hundred one".

Divisors: 1 3 9 27 241 723 2169 6507 25243 75729 227187 681561 6083563 18250689 54752067 164256201