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8252947 = 43191929
BaseRepresentation
bin11111011110111000010011
3120112021220201
4133132320103
54103043242
6452520031
7130102033
oct37367023
916467821
108252947
11472761a
122920017
13192c601
14114b8c3
15ad04b7
hex7dee13

8252947 has 4 divisors (see below), whose sum is σ = 8444920. Its totient is φ = 8060976.

The previous prime is 8252941. The next prime is 8252953. The reversal of 8252947 is 7492528.

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

It is an interprime number because it is at equal distance from previous prime (8252941) and next prime (8252953).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8252947 is a prime.

It is a super-2 number, since 2×82529472 = 136222268369618, which contains 22 as substring.

It is a d-powerful number, because it can be written as 87 + 24 + 58 + 28 + 92 + 42 + 78 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8252941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95922 + ... + 96007.

It is an arithmetic number, because the mean of its divisors is an integer number (2111230).

Almost surely, 28252947 is an apocalyptic number.

8252947 is a deficient number, since it is larger than the sum of its proper divisors (191973).

8252947 is a wasteful number, since it uses less digits than its factorization.

8252947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191972.

The product of its digits is 40320, while the sum is 37.

The square root of 8252947 is about 2872.7942843162. The cubic root of 8252947 is about 202.0860578322.

The spelling of 8252947 in words is "eight million, two hundred fifty-two thousand, nine hundred forty-seven".

Divisors: 1 43 191929 8252947