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164406860 = 22556914447
BaseRepresentation
bin10011100110010…
…10011001001100
3102110100201210222
421303022121030
5314042004420
624151450512
74034302202
oct1163123114
9373321728
10164406860
1184892342
1247086a38
13280a4587
1417b99072
15e678225
hex9cca64c

164406860 has 24 divisors (see below), whose sum is σ = 345885120. Its totient is φ = 65642624.

The previous prime is 164406859. The next prime is 164406871. The reversal of 164406860 is 68604461.

164406860 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-3 number, since 3×1644068603 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164406860.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4157 + ... + 18603.

It is an arithmetic number, because the mean of its divisors is an integer number (14411880).

Almost surely, 2164406860 is an apocalyptic number.

164406860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164406860 is an abundant number, since it is smaller than the sum of its proper divisors (181478260).

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

164406860 is a wasteful number, since it uses less digits than its factorization.

164406860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15025 (or 15023 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 164406860 is about 12822.1238490353. The cubic root of 164406860 is about 547.8226422695.

The spelling of 164406860 in words is "one hundred sixty-four million, four hundred six thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 569 1138 2276 2845 5690 11380 14447 28894 57788 72235 144470 288940 8220343 16440686 32881372 41101715 82203430 164406860