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164324140 = 22510379769
BaseRepresentation
bin10011100101101…
…10001100101100
3102110012112100021
421302312030230
5314031333030
624150011524
74033506061
oct1162661454
9373175307
10164324140
1184836182
1247046ba4
1328075a26
1417b76c68
15e65d97a
hex9cb632c

164324140 has 24 divisors (see below), whose sum is σ = 348435360. Its totient is φ = 65090688.

The previous prime is 164324131. The next prime is 164324161. The reversal of 164324140 is 41423461.

164324140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37825 + ... + 41944.

It is an arithmetic number, because the mean of its divisors is an integer number (14518140).

Almost surely, 2164324140 is an apocalyptic number.

164324140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164324140 is an abundant number, since it is smaller than the sum of its proper divisors (184111220).

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

164324140 is a wasteful number, since it uses less digits than its factorization.

164324140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79881 (or 79879 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 164324140 is about 12818.8977685291. The cubic root of 164324140 is about 547.7307493254.

The spelling of 164324140 in words is "one hundred sixty-four million, three hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 79769 159538 319076 398845 797690 1595380 8216207 16432414 32864828 41081035 82162070 164324140