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56205541 = 78029363
BaseRepresentation
bin1101011001101…
…0000011100101
310220202112111201
43112122003211
5103342034131
65324402501
71251511360
oct326320345
9126675451
1056205541
11297aa067
12169a6431
13b84bb22
1476710d7
154e03761
hex359a0e5

56205541 has 4 divisors (see below), whose sum is σ = 64234912. Its totient is φ = 48176172.

The previous prime is 56205533. The next prime is 56205551. The reversal of 56205541 is 14550265.

56205541 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56205541 - 23 = 56205533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56205521) 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, 4014675 + ... + 4014688.

It is an arithmetic number, because the mean of its divisors is an integer number (16058728).

Almost surely, 256205541 is an apocalyptic number.

It is an amenable number.

56205541 is a deficient number, since it is larger than the sum of its proper divisors (8029371).

56205541 is an equidigital number, since it uses as much as digits as its factorization.

56205541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8029370.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 56205541 is about 7497.0354807751. The cubic root of 56205541 is about 383.0537433644.

The spelling of 56205541 in words is "fifty-six million, two hundred five thousand, five hundred forty-one".

Divisors: 1 7 8029363 56205541