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12876616 = 2317731297
BaseRepresentation
bin110001000111…
…101101001000
3220020012101201
4301013231020
511244022431
61135553544
7214310104
oct61075510
926205351
1012876616
1172a5435
12438b8b4
13288accc
1419d2904
1511e5461
hexc47b48

12876616 has 32 divisors (see below), whose sum is σ = 25934040. Its totient is φ = 5971968.

The previous prime is 12876613. The next prime is 12876641. The reversal of 12876616 is 61667821.

It can be written as a sum of positive squares in 4 ways, for example, as 12574116 + 302500 = 3546^2 + 550^2 .

It is a super-2 number, since 2×128766162 = 331614479222912, which contains 22 as substring.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12876613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9280 + ... + 10576.

Almost surely, 212876616 is an apocalyptic number.

It is an amenable number.

12876616 is an abundant number, since it is smaller than the sum of its proper divisors (13057424).

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

12876616 is a wasteful number, since it uses less digits than its factorization.

12876616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1389 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 12876616 is about 3588.4002006465. The cubic root of 12876616 is about 234.3872128984.

The spelling of 12876616 in words is "twelve million, eight hundred seventy-six thousand, six hundred sixteen".

Divisors: 1 2 4 8 17 34 68 73 136 146 292 584 1241 1297 2482 2594 4964 5188 9928 10376 22049 44098 88196 94681 176392 189362 378724 757448 1609577 3219154 6438308 12876616