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12641902 = 272139923
BaseRepresentation
bin110000001110…
…011001101110
3212210021102121
4300032121232
511214020102
61130543154
7212311600
oct60163156
925707377
1012641902
117155059
124297aba
132808220
141971170
15119ab37
hexc0e66e

12641902 has 24 divisors (see below), whose sum is σ = 23758056. Its totient is φ = 5000688.

The previous prime is 12641869. The next prime is 12641917. The reversal of 12641902 is 20914621.

12641902 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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3688 + ... + 6235.

It is an arithmetic number, because the mean of its divisors is an integer number (989919).

Almost surely, 212641902 is an apocalyptic number.

12641902 is a deficient number, since it is larger than the sum of its proper divisors (11116154).

12641902 is a wasteful number, since it uses less digits than its factorization.

12641902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952 (or 9945 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12641902 is about 3555.5452465128. The cubic root of 12641902 is about 232.9543403072.

The spelling of 12641902 in words is "twelve million, six hundred forty-one thousand, nine hundred two".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1274 9923 19846 69461 128999 138922 257998 486227 902993 972454 1805986 6320951 12641902