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164244141 = 3259309311
BaseRepresentation
bin10011100101000…
…10101010101101
3102110001110121100
421302202222231
5314021303031
624144153313
74033023615
oct1162425255
9373043540
10164244141
1184791066
1247008839
13280484a9
1417b55a45
15e644de6
hex9ca2aad

164244141 has 12 divisors (see below), whose sum is σ = 241263360. Its totient is φ = 107639880.

The previous prime is 164244131. The next prime is 164244161. The reversal of 164244141 is 141442461.

164244141 is a `hidden beast` number, since 1 + 642 + 4 + 4 + 14 + 1 = 666.

164244141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164244141 - 27 = 164244013 is a prime.

It is a super-2 number, since 2×1642441412 = 53952275705655762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164244121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154125 + ... + 155186.

It is an arithmetic number, because the mean of its divisors is an integer number (20105280).

Almost surely, 2164244141 is an apocalyptic number.

It is an amenable number.

164244141 is a deficient number, since it is larger than the sum of its proper divisors (77019219).

164244141 is a wasteful number, since it uses less digits than its factorization.

164244141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309376 (or 309373 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 164244141 is about 12815.7770345773. Note that the first 3 decimals coincide. The cubic root of 164244141 is about 547.6418497783.

The spelling of 164244141 in words is "one hundred sixty-four million, two hundred forty-four thousand, one hundred forty-one".

Divisors: 1 3 9 59 177 531 309311 927933 2783799 18249349 54748047 164244141