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56188949 is a prime number
BaseRepresentation
bin1101011001011…
…0000000010101
310220201200202012
43112112000111
5103341021244
65324154005
71251412115
oct326260025
9126650665
1056188949
1129798653
1216998905
13b8443cb
147669045
154ded89e
hex3596015

56188949 has 2 divisors, whose sum is σ = 56188950. Its totient is φ = 56188948.

The previous prime is 56188919. The next prime is 56188967. The reversal of 56188949 is 94988165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56175025 + 13924 = 7495^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 56188949 - 212 = 56184853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56188897 and 56188906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56188919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28094474 + 28094475.

It is an arithmetic number, because the mean of its divisors is an integer number (28094475).

Almost surely, 256188949 is an apocalyptic number.

It is an amenable number.

56188949 is a deficient number, since it is larger than the sum of its proper divisors (1).

56188949 is an equidigital number, since it uses as much as digits as its factorization.

56188949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 50.

The square root of 56188949 is about 7495.9288283708. The cubic root of 56188949 is about 383.0160468841.

The spelling of 56188949 in words is "fifty-six million, one hundred eighty-eight thousand, nine hundred forty-nine".