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8972648 = 233730313
BaseRepresentation
bin100010001110…
…100101101000
3121212212011022
4202032211220
54244111043
6520152012
7136160216
oct42164550
917785138
108972648
115079313
123008608
131b22079
141297cb6
15bc3868
hex88e968

8972648 has 16 divisors (see below), whose sum is σ = 17278980. Its totient is φ = 4364928.

The previous prime is 8972647. The next prime is 8972657. The reversal of 8972648 is 8462798.

It can be written as a sum of positive squares in 2 ways, for example, as 7171684 + 1800964 = 2678^2 + 1342^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8972599 and 8972608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8972647) 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, 14861 + ... + 15452.

Almost surely, 28972648 is an apocalyptic number.

It is an amenable number.

8972648 is a deficient number, since it is larger than the sum of its proper divisors (8306332).

8972648 is a wasteful number, since it uses less digits than its factorization.

8972648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30356 (or 30352 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 8972648 is about 2995.4378644866. The cubic root of 8972648 is about 207.7974482814.

The spelling of 8972648 in words is "eight million, nine hundred seventy-two thousand, six hundred forty-eight".

Divisors: 1 2 4 8 37 74 148 296 30313 60626 121252 242504 1121581 2243162 4486324 8972648