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5780396221 is a prime number
BaseRepresentation
bin1010110001000100…
…11101100010111101
3112220211211112220221
411120202131202331
543314240134341
62353325541341
7263146362055
oct53042354275
915824745827
105780396221
1124a6979266
121153a14851
137117397c2
143cb9a6565
1523c709ed1
hex15889d8bd

5780396221 has 2 divisors, whose sum is σ = 5780396222. Its totient is φ = 5780396220.

The previous prime is 5780396189. The next prime is 5780396227. The reversal of 5780396221 is 1226930875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5380956025 + 399440196 = 73355^2 + 19986^2 .

It is a cyclic number.

It is not a de Polignac number, because 5780396221 - 25 = 5780396189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5780396227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2890198110 + 2890198111.

It is an arithmetic number, because the mean of its divisors is an integer number (2890198111).

Almost surely, 25780396221 is an apocalyptic number.

It is an amenable number.

5780396221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5780396221 is an equidigital number, since it uses as much as digits as its factorization.

5780396221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 5780396221 is about 76028.9170053079. The cubic root of 5780396221 is about 1794.6752330247.

The spelling of 5780396221 in words is "five billion, seven hundred eighty million, three hundred ninety-six thousand, two hundred twenty-one".