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164082775 = 527197953
BaseRepresentation
bin10011100011110…
…11010001010111
3102102202021020211
421301323101113
5314001122100
624140510251
74031452303
oct1161732127
9372667224
10164082775
11846908aa
1246b4b387
1327cbcbcc
1417b12d03
15e6121ba
hex9c7b457

164082775 has 24 divisors (see below), whose sum is σ = 208674144. Its totient is φ = 127948800.

The previous prime is 164082773. The next prime is 164082817. The reversal of 164082775 is 577280461.

It is not a de Polignac number, because 164082775 - 21 = 164082773 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 (164082773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171699 + ... + 172651.

It is an arithmetic number, because the mean of its divisors is an integer number (8694756).

Almost surely, 2164082775 is an apocalyptic number.

164082775 is a deficient number, since it is larger than the sum of its proper divisors (44591369).

164082775 is an equidigital number, since it uses as much as digits as its factorization.

164082775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 164082775 is about 12809.4798879580. The cubic root of 164082775 is about 547.4624426049.

The spelling of 164082775 in words is "one hundred sixty-four million, eighty-two thousand, seven hundred seventy-five".

Divisors: 1 5 25 71 97 355 485 953 1775 2425 4765 6887 23825 34435 67663 92441 172175 338315 462205 1691575 2311025 6563311 32816555 164082775