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12772164 = 2231139419
BaseRepresentation
bin110000101110…
…001101000100
3220000220010010
4300232031010
511232202124
61133430220
7213363426
oct60561504
926026103
1012772164
117233a09
12433b370
1328525c2
1419a6816
1511c4529
hexc2e344

12772164 has 24 divisors (see below), whose sum is σ = 30068640. Its totient is φ = 4219264.

The previous prime is 12772159. The next prime is 12772169. The reversal of 12772164 is 46127721.

It is an interprime number because it is at equal distance from previous prime (12772159) and next prime (12772169).

It is not an unprimeable number, because it can be changed into a prime (12772169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3354 + ... + 6065.

It is an arithmetic number, because the mean of its divisors is an integer number (1252860).

Almost surely, 212772164 is an apocalyptic number.

It is an amenable number.

12772164 is an abundant number, since it is smaller than the sum of its proper divisors (17296476).

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

12772164 is a wasteful number, since it uses less digits than its factorization.

12772164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539 (or 9537 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 12772164 is about 3573.8164474410. The cubic root of 12772164 is about 233.7517273267.

Adding to 12772164 its reverse (46127721), we get a palindrome (58899885).

The spelling of 12772164 in words is "twelve million, seven hundred seventy-two thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 9419 18838 28257 37676 56514 113028 1064347 2128694 3193041 4257388 6386082 12772164