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164163252 = 2231159107197
BaseRepresentation
bin10011100100011…
…10111010110100
3102102220100122110
421302032322310
5314011211002
624142331020
74032236031
oct1162167264
9372810573
10164163252
1184736310
1246b89a70
132801a726
1417b34388
15e62ae6c
hex9c8eeb4

164163252 has 96 divisors (see below), whose sum is σ = 431101440. Its totient is φ = 48200320.

The previous prime is 164163217. The next prime is 164163253. The reversal of 164163252 is 252361461.

164163252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164163253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 833218 + ... + 833414.

It is an arithmetic number, because the mean of its divisors is an integer number (4490640).

Almost surely, 2164163252 is an apocalyptic number.

164163252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164163252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215550720).

164163252 is an abundant number, since it is smaller than the sum of its proper divisors (266938188).

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

164163252 is a wasteful number, since it uses less digits than its factorization.

164163252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381 (or 379 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 164163252 is about 12812.6208091865. The cubic root of 164163252 is about 547.5519318559.

The spelling of 164163252 in words is "one hundred sixty-four million, one hundred sixty-three thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 59 66 107 118 132 177 197 214 236 321 354 394 428 591 642 649 708 788 1177 1182 1284 1298 1947 2167 2354 2364 2596 3531 3894 4334 4708 6313 6501 7062 7788 8668 11623 12626 13002 14124 18939 21079 23246 25252 26004 34869 37878 42158 46492 63237 69443 69738 75756 84316 126474 127853 138886 139476 208329 231869 252948 255706 277772 383559 416658 463738 511412 695607 767118 833316 927476 1243661 1391214 1534236 2487322 2782428 3730983 4974644 7461966 13680271 14923932 27360542 41040813 54721084 82081626 164163252