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164205012 = 223109125539
BaseRepresentation
bin10011100100110…
…01000111010100
3102102222110221010
421302121013110
5314014030022
624143252220
74032501546
oct1162310724
9372873833
10164205012
1184764724
1246baa070
132803373a
1417b45696
15e63850c
hex9c991d4

164205012 has 24 divisors (see below), whose sum is σ = 386663200. Its totient is φ = 54232416.

The previous prime is 164204993. The next prime is 164205029. The reversal of 164205012 is 210502461.

It is a self number, because there is not a number n which added to its sum of digits gives 164205012.

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, 61462 + ... + 64077.

Almost surely, 2164205012 is an apocalyptic number.

164205012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164205012 is an abundant number, since it is smaller than the sum of its proper divisors (222458188).

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

164205012 is a wasteful number, since it uses less digits than its factorization.

164205012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125655 (or 125653 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 164205012 is about 12814.2503487329. The cubic root of 164205012 is about 547.5983568420.

Adding to 164205012 its reverse (210502461), we get a palindrome (374707473).

The spelling of 164205012 in words is "one hundred sixty-four million, two hundred five thousand, twelve".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 125539 251078 376617 502156 753234 1506468 13683751 27367502 41051253 54735004 82102506 164205012