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56002801 = 429713033
BaseRepresentation
bin1101010110100…
…0100011110001
310220101020101211
43111220203301
5103314042201
65320200121
71250005321
oct325504361
9126336354
1056002801
1129680808
1216909041
13b7aa76a
14761b281
154db3651
hex35688f1

56002801 has 4 divisors (see below), whose sum is σ = 56020132. Its totient is φ = 55985472.

The previous prime is 56002789. The next prime is 56002831. The reversal of 56002801 is 10820065.

It is a happy number.

56002801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10820065 = 52164013.

It can be written as a sum of positive squares in 2 ways, for example, as 32490000 + 23512801 = 5700^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 56002801 - 217 = 55871729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56002831) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2220 + ... + 10813.

It is an arithmetic number, because the mean of its divisors is an integer number (14005033).

Almost surely, 256002801 is an apocalyptic number.

It is an amenable number.

56002801 is a deficient number, since it is larger than the sum of its proper divisors (17331).

56002801 is a wasteful number, since it uses less digits than its factorization.

56002801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17330.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 56002801 is about 7483.5019208924. The cubic root of 56002801 is about 382.5926151627.

Adding to 56002801 its reverse (10820065), we get a palindrome (66822866).

The spelling of 56002801 in words is "fifty-six million, two thousand, eight hundred one".

Divisors: 1 4297 13033 56002801