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8942974015 = 517639716447

8942974015 has 16 divisors (see below), whose sum is σ = 11365304832. Its totient is φ = 6732071424.

The previous prime is 8942974013. The next prime is 8942974039. The reversal of 8942974015 is 5104792498.

8942974015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8942974015 - 21 = 8942974013 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 8942974015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8942974013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535522 + ... + 551968.

It is an arithmetic number, because the mean of its divisors is an integer number (710331552).

Almost surely, 28942974015 is an apocalyptic number.

8942974015 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8942974015 is a deficient number, since it is larger than the sum of its proper divisors (2422330817).

8942974015 is a wasteful number, since it uses less digits than its factorization.

8942974015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22866.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 8942974015 is about 94567.2988669974. The cubic root of 8942974015 is about 2075.6812213399.

The spelling of 8942974015 in words is "eight billion, nine hundred forty-two million, nine hundred seventy-four thousand, fifteen".

Divisors: 1 5 17 85 6397 16447 31985 82235 108749 279599 543745 1397995 105211459 526057295 1788594803 8942974015