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12900668 = 2211449653
BaseRepresentation
bin110001001101…
…100100111100
3220021102101112
4301031210330
511300310133
61140301152
7214440164
oct61154474
926242345
1012900668
117311510
1243a17b8
132898c41
1419db5a4
1511ec648
hexc4d93c

12900668 has 24 divisors (see below), whose sum is σ = 24721200. Its totient is φ = 5841920.

The previous prime is 12900661. The next prime is 12900683. The reversal of 12900668 is 86600921.

12900668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12900661) 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, 19430 + ... + 20082.

It is an arithmetic number, because the mean of its divisors is an integer number (1030050).

Almost surely, 212900668 is an apocalyptic number.

It is an amenable number.

12900668 is a deficient number, since it is larger than the sum of its proper divisors (11820532).

12900668 is a wasteful number, since it uses less digits than its factorization.

12900668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 12900668 is about 3591.7499912995. The cubic root of 12900668 is about 234.5330580188.

The spelling of 12900668 in words is "twelve million, nine hundred thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 22 44 449 653 898 1306 1796 2612 4939 7183 9878 14366 19756 28732 293197 586394 1172788 3225167 6450334 12900668