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12980974 = 26490487
BaseRepresentation
bin110001100001…
…001011101110
3220102111112211
4301201023232
511310342344
61142121034
7215223256
oct61411356
926374484
1012980974
117366886
12442017a
1328c6666
141a1c966
151216334
hexc612ee

12980974 has 4 divisors (see below), whose sum is σ = 19471464. Its totient is φ = 6490486.

The previous prime is 12980963. The next prime is 12981011. The reversal of 12980974 is 47908921.

12980974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245242 + ... + 3245245.

It is an arithmetic number, because the mean of its divisors is an integer number (4867866).

Almost surely, 212980974 is an apocalyptic number.

12980974 is a deficient number, since it is larger than the sum of its proper divisors (6490490).

12980974 is an equidigital number, since it uses as much as digits as its factorization.

12980974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490489.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 12980974 is about 3602.9118779121. The cubic root of 12980974 is about 235.0187038078.

The spelling of 12980974 in words is "twelve million, nine hundred eighty thousand, nine hundred seventy-four".

Divisors: 1 2 6490487 12980974