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56528001 = 326280889
BaseRepresentation
bin1101011110100…
…0110010000001
310221100220211200
43113220302001
5103432344001
65335331413
71254323445
oct327506201
9127326750
1056528001
11299aa362
1216b20b69
13b93282a
147716825
154e69086
hex35e8c81

56528001 has 6 divisors (see below), whose sum is σ = 81651570. Its totient is φ = 37685328.

The previous prime is 56527969. The next prime is 56528023. The reversal of 56528001 is 10082565.

56528001 is a `hidden beast` number, since 5 + 652 + 8 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55487601 + 1040400 = 7449^2 + 1020^2 .

It is not a de Polignac number, because 56528001 - 25 = 56527969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56528071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3140436 + ... + 3140453.

It is an arithmetic number, because the mean of its divisors is an integer number (13608595).

Almost surely, 256528001 is an apocalyptic number.

It is an amenable number.

56528001 is a deficient number, since it is larger than the sum of its proper divisors (25123569).

56528001 is a wasteful number, since it uses less digits than its factorization.

56528001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6280895 (or 6280892 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 56528001 is about 7518.5105572846. The cubic root of 56528001 is about 383.7848933601.

The spelling of 56528001 in words is "fifty-six million, five hundred twenty-eight thousand, one".

Divisors: 1 3 9 6280889 18842667 56528001