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164202123 = 3192880739
BaseRepresentation
bin10011100100110…
…00011010001011
3102102222022222010
421302120122023
5314013431443
624143231003
74032460251
oct1162303213
9372868863
10164202123
1184762538
1246ba8463
1328032327
1417b445d1
15e637733
hex9c9868b

164202123 has 8 divisors (see below), whose sum is σ = 230459200. Its totient is φ = 103706568.

The previous prime is 164202121. The next prime is 164202139. The reversal of 164202123 is 321202461.

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

It is not a de Polignac number, because 164202123 - 21 = 164202121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164202123.

It is not an unprimeable number, because it can be changed into a prime (164202121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1440313 + ... + 1440426.

It is an arithmetic number, because the mean of its divisors is an integer number (28807400).

Almost surely, 2164202123 is an apocalyptic number.

164202123 is a deficient number, since it is larger than the sum of its proper divisors (66257077).

164202123 is a wasteful number, since it uses less digits than its factorization.

164202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880761.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 164202123 is about 12814.1376221734. The cubic root of 164202123 is about 547.5951453669.

Adding to 164202123 its reverse (321202461), we get a palindrome (485404584).

The spelling of 164202123 in words is "one hundred sixty-four million, two hundred two thousand, one hundred twenty-three".

Divisors: 1 3 19 57 2880739 8642217 54734041 164202123