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8252987 = 27912957
BaseRepresentation
bin11111011110111000111011
3120112021222012
4133132320323
54103043422
6452520135
7130102121
oct37367073
916467865
108252987
114727656
12292004b
13192c632
14114b911
15ad04e2
hex7dee3b

8252987 has 4 divisors (see below), whose sum is σ = 8258736. Its totient is φ = 8247240.

The previous prime is 8252977. The next prime is 8252989. The reversal of 8252987 is 7892528.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8252987 - 24 = 8252971 is a prime.

It is a super-2 number, since 2×82529872 = 136223588844338, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 28 + 58 + 221 + 92 + 82 + 78 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8252989) 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 3 ways as a sum of consecutive naturals, for example, 1313 + ... + 4269.

It is an arithmetic number, because the mean of its divisors is an integer number (2064684).

Almost surely, 28252987 is an apocalyptic number.

8252987 is a deficient number, since it is larger than the sum of its proper divisors (5749).

8252987 is a wasteful number, since it uses less digits than its factorization.

8252987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748.

The product of its digits is 80640, while the sum is 41.

The square root of 8252987 is about 2872.8012461707. The cubic root of 8252987 is about 202.0863843188.

The spelling of 8252987 in words is "eight million, two hundred fifty-two thousand, nine hundred eighty-seven".

Divisors: 1 2791 2957 8252987