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56240065 = 571606859
BaseRepresentation
bin1101011010001…
…0011111000001
310220211021212101
43112202133001
5103344140230
65325230401
71252014130
oct326423701
9126737771
1056240065
1129822aa2
1216a02401
13b86175b
14767d917
154e0daca
hex35a27c1

56240065 has 8 divisors (see below), whose sum is σ = 77129280. Its totient is φ = 38564592.

The previous prime is 56240047. The next prime is 56240071. The reversal of 56240065 is 56004265.

56240065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56240065 is a prime.

It is a super-2 number, since 2×562400652 = 6325889822408450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803395 + ... + 803464.

It is an arithmetic number, because the mean of its divisors is an integer number (9641160).

Almost surely, 256240065 is an apocalyptic number.

It is an amenable number.

56240065 is a deficient number, since it is larger than the sum of its proper divisors (20889215).

56240065 is a wasteful number, since it uses less digits than its factorization.

56240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606871.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 56240065 is about 7499.3376374184. The cubic root of 56240065 is about 383.1321569894.

The spelling of 56240065 in words is "fifty-six million, two hundred forty thousand, sixty-five".

Divisors: 1 5 7 35 1606859 8034295 11248013 56240065