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56300621 = 136170997
BaseRepresentation
bin1101011011000…
…1010001001101
310220221100221012
43112301101031
5103403104441
65330415005
71252355516
oct326612115
9126840835
1056300621
1129864543
1216a31465
13b8831a0
147697a0d
154e219eb
hex35b144d

56300621 has 8 divisors (see below), whose sum is σ = 61626264. Its totient is φ = 51117120.

The previous prime is 56300581. The next prime is 56300623. The reversal of 56300621 is 12600365.

56300621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8497225 + 47803396 = 2915^2 + 6914^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56300621 - 214 = 56284237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56300623) 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, 34706 + ... + 36291.

It is an arithmetic number, because the mean of its divisors is an integer number (7703283).

Almost surely, 256300621 is an apocalyptic number.

It is an amenable number.

56300621 is a deficient number, since it is larger than the sum of its proper divisors (5325643).

56300621 is a wasteful number, since it uses less digits than its factorization.

56300621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71071.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 56300621 is about 7503.3739744198. The cubic root of 56300621 is about 383.2696190682.

Adding to 56300621 its reverse (12600365), we get a palindrome (68900986).

The spelling of 56300621 in words is "fifty-six million, three hundred thousand, six hundred twenty-one".

Divisors: 1 13 61 793 70997 922961 4330817 56300621