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164069212 = 22231783361
BaseRepresentation
bin10011100011101…
…11111101011100
3102102201120122111
421301313331130
5314000203322
624140323404
74031364616
oct1161677534
9372646574
10164069212
118468169a
1246b43564
1327cb6998
1417b0bdb6
15e60d177
hex9c77f5c

164069212 has 12 divisors (see below), whose sum is σ = 299604816. Its totient is φ = 78467840.

The previous prime is 164069197. The next prime is 164069219. The reversal of 164069212 is 212960461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164069219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 891589 + ... + 891772.

It is an arithmetic number, because the mean of its divisors is an integer number (24967068).

Almost surely, 2164069212 is an apocalyptic number.

It is an amenable number.

164069212 is a deficient number, since it is larger than the sum of its proper divisors (135535604).

164069212 is a wasteful number, since it uses less digits than its factorization.

164069212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783388 (or 1783386 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 164069212 is about 12808.9504644214. The cubic root of 164069212 is about 547.4473578654.

The spelling of 164069212 in words is "one hundred sixty-four million, sixty-nine thousand, two hundred twelve".

Divisors: 1 2 4 23 46 92 1783361 3566722 7133444 41017303 82034606 164069212