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12969078 = 232161513
BaseRepresentation
bin110001011110…
…010001110110
3220101220020020
4301132101312
511310002303
61141550010
7215143503
oct61362166
926356206
1012969078
117358951
124415306
1328c1115
141a184aa
151212a53
hexc5e476

12969078 has 8 divisors (see below), whose sum is σ = 25938168. Its totient is φ = 4323024.

The previous prime is 12969071. The next prime is 12969083. The reversal of 12969078 is 87096921.

It is a sphenic number, since it is the product of 3 distinct primes.

12969078 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12969071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080751 + ... + 1080762.

It is an arithmetic number, because the mean of its divisors is an integer number (3242271).

Almost surely, 212969078 is an apocalyptic number.

12969078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12969078 is a wasteful number, since it uses less digits than its factorization.

12969078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161518.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 12969078 is about 3601.2606126189. The cubic root of 12969078 is about 234.9468900654.

The spelling of 12969078 in words is "twelve million, nine hundred sixty-nine thousand, seventy-eight".

Divisors: 1 2 3 6 2161513 4323026 6484539 12969078