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164244660 = 22352737411
BaseRepresentation
bin10011100101000…
…10110010110100
3102110001111022120
421302202302310
5314021312120
624144155540
74033025256
oct1162426264
9373044276
10164244660
1184791498
1247008bb0
13280487b8
1417b55cd6
15e645140
hex9ca2cb4

164244660 has 24 divisors (see below), whose sum is σ = 459885216. Its totient is φ = 43798560.

The previous prime is 164244653. The next prime is 164244673. The reversal of 164244660 is 66442461.

It is a congruent number.

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, 1368646 + ... + 1368765.

It is an arithmetic number, because the mean of its divisors is an integer number (19161884).

Almost surely, 2164244660 is an apocalyptic number.

164244660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164244660 is an abundant number, since it is smaller than the sum of its proper divisors (295640556).

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

164244660 is a wasteful number, since it uses less digits than its factorization.

164244660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737423 (or 2737421 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 164244660 is about 12815.7972830410. The cubic root of 164244660 is about 547.6424266143.

The spelling of 164244660 in words is "one hundred sixty-four million, two hundred forty-four thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2737411 5474822 8212233 10949644 13687055 16424466 27374110 32848932 41061165 54748220 82122330 164244660