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164012032 = 21320021
BaseRepresentation
bin10011100011010…
…10000000000000
3102102121200012201
421301222000000
5313441341112
624135202544
74031036122
oct1161520000
9372550181
10164012032
1184642738
1246b16454
1327c96952
1417ad5212
15e5eb257
hex9c6a000

164012032 has 28 divisors (see below), whose sum is σ = 328020426. Its totient is φ = 82001920.

The previous prime is 164012021. The next prime is 164012033. The reversal of 164012032 is 230210461.

164012032 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 162205696 + 1806336 = 12736^2 + 1344^2 .

It is not an unprimeable number, because it can be changed into a prime (164012033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1819 + ... + 18202.

Almost surely, 2164012032 is an apocalyptic number.

It is an amenable number.

164012032 is a deficient number, since it is larger than the sum of its proper divisors (164008394).

164012032 is an frugal number, since it uses more digits than its factorization.

164012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20047 (or 20023 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 164012032 is about 12806.7182369255. The cubic root of 164012032 is about 547.3837532506.

Adding to 164012032 its reverse (230210461), we get a palindrome (394222493).

The spelling of 164012032 in words is "one hundred sixty-four million, twelve thousand, thirty-two".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 8192 20021 40042 80084 160168 320336 640672 1281344 2562688 5125376 10250752 20501504 41003008 82006016 164012032