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12992827 = 19683833
BaseRepresentation
bin110001100100…
…000100111011
3220110002210211
4301210010323
511311232302
61142251551
7215302651
oct61440473
926402724
1012992827
117374781
124426bb7
1328cbb83
141a22dd1
151219ad7
hexc6413b

12992827 has 4 divisors (see below), whose sum is σ = 13676680. Its totient is φ = 12308976.

The previous prime is 12992807. The next prime is 12992831. The reversal of 12992827 is 72829921.

12992827 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 72829921 = 174284113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12992827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12992827.

It is not an unprimeable number, because it can be changed into a prime (12992807) 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 3 ways as a sum of consecutive naturals, for example, 341898 + ... + 341935.

It is an arithmetic number, because the mean of its divisors is an integer number (3419170).

Almost surely, 212992827 is an apocalyptic number.

12992827 is a deficient number, since it is larger than the sum of its proper divisors (683853).

12992827 is an equidigital number, since it uses as much as digits as its factorization.

12992827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683852.

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

The square root of 12992827 is about 3604.5564220858. The cubic root of 12992827 is about 235.0902143445.

The spelling of 12992827 in words is "twelve million, nine hundred ninety-two thousand, eight hundred twenty-seven".

Divisors: 1 19 683833 12992827