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8972163 = 328831129
BaseRepresentation
bin100010001110…
…011110000011
3121212211111100
4202032132003
54244102123
6520145443
7136155624
oct42163603
917784440
108972163
115078a12
123008283
131b21a95
141297a4b
15bc3643
hex88e783

8972163 has 12 divisors (see below), whose sum is σ = 12985960. Its totient is φ = 5969376.

The previous prime is 8972147. The next prime is 8972177. The reversal of 8972163 is 3612798.

It is not a de Polignac number, because 8972163 - 24 = 8972147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8972263) 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 11 ways as a sum of consecutive naturals, for example, 7383 + ... + 8511.

Almost surely, 28972163 is an apocalyptic number.

8972163 is a deficient number, since it is larger than the sum of its proper divisors (4013797).

8972163 is a wasteful number, since it uses less digits than its factorization.

8972163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2015 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 8972163 is about 2995.3569069478. The cubic root of 8972163 is about 207.7937041775.

The spelling of 8972163 in words is "eight million, nine hundred seventy-two thousand, one hundred sixty-three".

Divisors: 1 3 9 883 1129 2649 3387 7947 10161 996907 2990721 8972163