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164345212 = 221923149631
BaseRepresentation
bin10011100101110…
…11010101111100
3102110020121020201
421302323111330
5314033021322
624150253244
74033624363
oct1162732574
9373217221
10164345212
118484aa99
1247057224
13280824b5
1417b807da
15e664d27
hex9cbb57c

164345212 has 48 divisors (see below), whose sum is σ = 318528000. Its totient is φ = 73846080.

The previous prime is 164345173. The next prime is 164345213. The reversal of 164345212 is 212543461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164345213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260137 + ... + 260767.

It is an arithmetic number, because the mean of its divisors is an integer number (6636000).

Almost surely, 2164345212 is an apocalyptic number.

It is an amenable number.

164345212 is a deficient number, since it is larger than the sum of its proper divisors (154182788).

164345212 is a wasteful number, since it uses less digits than its factorization.

164345212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826 (or 824 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 164345212 is about 12819.7196537210. The cubic root of 164345212 is about 547.7541609577.

Adding to 164345212 its reverse (212543461), we get a palindrome (376888673).

The spelling of 164345212 in words is "one hundred sixty-four million, three hundred forty-five thousand, two hundred twelve".

Divisors: 1 2 4 19 23 38 46 76 92 149 298 437 596 631 874 1262 1748 2524 2831 3427 5662 6854 11324 11989 13708 14513 23978 29026 47956 58052 65113 94019 130226 188038 260452 275747 376076 551494 1102988 1786361 2162437 3572722 4324874 7145444 8649748 41086303 82172606 164345212