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12020164 = 22131391663
BaseRepresentation
bin101101110110…
…100111000100
3211121200120021
4231312213010
511034121124
61105344524
7204112132
oct55664704
924550507
1012020164
11686aa22
124038144
13264b230
14184c752
1510c67e4
hexb769c4

12020164 has 24 divisors (see below), whose sum is σ = 22830080. Its totient is φ = 5504544.

The previous prime is 12020161. The next prime is 12020209. The reversal of 12020164 is 46102021.

It is not an unprimeable number, because it can be changed into a prime (12020161) by changing a digit.

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, 6397 + ... + 8059.

Almost surely, 212020164 is an apocalyptic number.

It is an amenable number.

12020164 is a deficient number, since it is larger than the sum of its proper divisors (10809916).

12020164 is a wasteful number, since it uses less digits than its factorization.

12020164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819 (or 1817 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12020164 is about 3467.0108162508. The cubic root of 12020164 is about 229.0710101859.

Adding to 12020164 its reverse (46102021), we get a palindrome (58122185).

The spelling of 12020164 in words is "twelve million, twenty thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 139 278 556 1663 1807 3326 3614 6652 7228 21619 43238 86476 231157 462314 924628 3005041 6010082 12020164