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164168056 = 231319251331
BaseRepresentation
bin10011100100100…
…00000101111000
3102102220121020101
421302100011320
5314011334211
624142405144
74032256033
oct1162200570
9372817211
10164168056
1184739988
1246b907b4
132801c980
1417b3601a
15e62c5c1
hex9c90178

164168056 has 64 divisors (see below), whose sum is σ = 351388800. Its totient is φ = 71280000.

The previous prime is 164168047. The next prime is 164168057. The reversal of 164168056 is 650861461.

164168056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1641680562 = 53902301221638272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164168057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495811 + ... + 496141.

It is an arithmetic number, because the mean of its divisors is an integer number (5490450).

Almost surely, 2164168056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164168056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175694400).

164168056 is an abundant number, since it is smaller than the sum of its proper divisors (187220744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164168056 is a wasteful number, since it uses less digits than its factorization.

164168056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 164168056 is about 12812.8082792181. The cubic root of 164168056 is about 547.5572729088.

The spelling of 164168056 in words is "one hundred sixty-four million, one hundred sixty-eight thousand, fifty-six".

Divisors: 1 2 4 8 13 19 26 38 52 76 104 152 247 251 331 494 502 662 988 1004 1324 1976 2008 2648 3263 4303 4769 6289 6526 8606 9538 12578 13052 17212 19076 25156 26104 34424 38152 50312 61997 81757 83081 123994 163514 166162 247988 327028 332324 495976 654056 664648 1080053 1578539 2160106 3157078 4320212 6314156 8640424 12628312 20521007 41042014 82084028 164168056