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164271204172 = 2271578419733
BaseRepresentation
bin1001100011111101010…
…0111010011101001100
3120201000100020210122001
42120333110322131030
510142411412013142
6203244250002044
714603536124335
oct2307724723514
9521010223561
10164271204172
11637378a3069
1227a06116324
131264c11627a
147d44ca328c
1544169345b7
hex263f53a74c

164271204172 has 12 divisors (see below), whose sum is σ = 291523545936. Its totient is φ = 80978762480.

The previous prime is 164271204151. The next prime is 164271204179. The reversal of 164271204172 is 271402172461.

It is not an unprimeable number, because it can be changed into a prime (164271204179) 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, 289209583 + ... + 289210150.

It is an arithmetic number, because the mean of its divisors is an integer number (24293628828).

Almost surely, 2164271204172 is an apocalyptic number.

It is an amenable number.

164271204172 is a deficient number, since it is larger than the sum of its proper divisors (127252341764).

164271204172 is a wasteful number, since it uses less digits than its factorization.

164271204172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578419808 (or 578419806 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 164271204172 in words is "one hundred sixty-four billion, two hundred seventy-one million, two hundred four thousand, one hundred seventy-two".

Divisors: 1 2 4 71 142 284 578419733 1156839466 2313678932 41067801043 82135602086 164271204172