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8972168 = 231975693
BaseRepresentation
bin100010001110…
…011110001000
3121212211111112
4202032132020
54244102133
6520145452
7136155632
oct42163610
917784445
108972168
115078a17
123008288
131b21a9a
141297a52
15bc3648
hex88e788

8972168 has 16 divisors (see below), whose sum is σ = 16911180. Its totient is φ = 4462528.

The previous prime is 8972147. The next prime is 8972177. The reversal of 8972168 is 8612798.

It can be written as a sum of positive squares in 2 ways, for example, as 8868484 + 103684 = 2978^2 + 322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 4422.

Almost surely, 28972168 is an apocalyptic number.

It is an amenable number.

8972168 is a deficient number, since it is larger than the sum of its proper divisors (7939012).

8972168 is a wasteful number, since it uses less digits than its factorization.

8972168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5896 (or 5892 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 8972168 is about 2995.3577415728. The cubic root of 8972168 is about 207.7937427772.

The spelling of 8972168 in words is "eight million, nine hundred seventy-two thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 197 394 788 1576 5693 11386 22772 45544 1121521 2243042 4486084 8972168