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56249123 = 710973721
BaseRepresentation
bin1101011010010…
…0101100100011
310220211202021212
43112210230203
5103344432443
65325340335
71252052420
oct326445443
9126752255
1056249123
1129829887
1216a076ab
13b865908
147682d47
154e11618
hex35a4b23

56249123 has 8 divisors (see below), whose sum is σ = 64875360. Its totient is φ = 47770560.

The previous prime is 56249093. The next prime is 56249129. The reversal of 56249123 is 32194265.

It is a happy number.

56249123 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-56249123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56249123.

It is not an unprimeable number, because it can be changed into a prime (56249129) 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 7 ways as a sum of consecutive naturals, for example, 36098 + ... + 37623.

It is an arithmetic number, because the mean of its divisors is an integer number (8109420).

Almost surely, 256249123 is an apocalyptic number.

56249123 is a deficient number, since it is larger than the sum of its proper divisors (8626237).

56249123 is a wasteful number, since it uses less digits than its factorization.

56249123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73837.

The product of its digits is 12960, while the sum is 32.

The square root of 56249123 is about 7499.9415331054. The cubic root of 56249123 is about 383.1527249172.

The spelling of 56249123 in words is "fifty-six million, two hundred forty-nine thousand, one hundred twenty-three".

Divisors: 1 7 109 763 73721 516047 8035589 56249123