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164528311 = 419392669
BaseRepresentation
bin10011100111010…
…00000010110111
3102110120220102011
421303220002313
5314104401221
624154225051
74035316243
oct1163500267
9373526364
10164528311
1184965612
1247125187
132811793c
1417bcb423
15e69e1e1
hex9ce80b7

164528311 has 4 divisors (see below), whose sum is σ = 164921400. Its totient is φ = 164135224.

The previous prime is 164528297. The next prime is 164528321. The reversal of 164528311 is 113825461.

164528311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113825461 = 151753811.

It is a cyclic number.

It is not a de Polignac number, because 164528311 - 25 = 164528279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164528321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195916 + ... + 196753.

It is an arithmetic number, because the mean of its divisors is an integer number (41230350).

Almost surely, 2164528311 is an apocalyptic number.

164528311 is a deficient number, since it is larger than the sum of its proper divisors (393089).

164528311 is an equidigital number, since it uses as much as digits as its factorization.

164528311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393088.

The product of its digits is 5760, while the sum is 31.

The square root of 164528311 is about 12826.8589685862. The cubic root of 164528311 is about 547.9575053183.

The spelling of 164528311 in words is "one hundred sixty-four million, five hundred twenty-eight thousand, three hundred eleven".

Divisors: 1 419 392669 164528311