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164335212 = 22324564867
BaseRepresentation
bin10011100101110…
…00111001101100
3102110020002112100
421302320321230
5314032211322
624150135100
74033553256
oct1162707154
9373202470
10164335212
1184843528
1247051490
132807aa92
1417b7acd6
15e661dac
hex9cb8e6c

164335212 has 18 divisors (see below), whose sum is σ = 415402988. Its totient is φ = 54778392.

The previous prime is 164335189. The next prime is 164335219. The reversal of 164335212 is 212533461.

164335212 is a `hidden beast` number, since 1 + 643 + 3 + 5 + 2 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (164335219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2282398 + ... + 2282469.

Almost surely, 2164335212 is an apocalyptic number.

164335212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164335212 is an abundant number, since it is smaller than the sum of its proper divisors (251067776).

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

164335212 is a wasteful number, since it uses less digits than its factorization.

164335212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564877 (or 4564872 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 164335212 is about 12819.3296236582. The cubic root of 164335212 is about 547.7430509033.

Adding to 164335212 its reverse (212533461), we get a palindrome (376868673).

The spelling of 164335212 in words is "one hundred sixty-four million, three hundred thirty-five thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 4564867 9129734 13694601 18259468 27389202 41083803 54778404 82167606 164335212