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164543105 = 5127259123
BaseRepresentation
bin10011100111010…
…11101010000001
3102110121122201002
421303223222001
5314110334410
624154421345
74035410336
oct1163535201
9373548632
10164543105
1184975741
1247131855
13281215ac
1417bd298d
15e6a37a5
hex9ceba81

164543105 has 8 divisors (see below), whose sum is σ = 199007232. Its totient is φ = 130597488.

The previous prime is 164543087. The next prime is 164543117. The reversal of 164543105 is 501345461.

It is a happy number.

164543105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164543105 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128927 + ... + 130196.

It is an arithmetic number, because the mean of its divisors is an integer number (24875904).

Almost surely, 2164543105 is an apocalyptic number.

It is an amenable number.

164543105 is a deficient number, since it is larger than the sum of its proper divisors (34464127).

164543105 is a wasteful number, since it uses less digits than its factorization.

164543105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259255.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 164543105 is about 12827.4356361667. The cubic root of 164543105 is about 547.9739285108.

Adding to 164543105 its reverse (501345461), we get a palindrome (665888566).

The spelling of 164543105 in words is "one hundred sixty-four million, five hundred forty-three thousand, one hundred five".

Divisors: 1 5 127 635 259123 1295615 32908621 164543105