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5780396381 is a prime number
BaseRepresentation
bin1010110001000100…
…11101100101011101
3112220211211120010212
411120202131211131
543314240141011
62353325542205
7263146362404
oct53042354535
915824746125
105780396381
1124a69793a1
121153a14965
137117398b6
143cb9a663b
1523c70a08b
hex15889d95d

5780396381 has 2 divisors, whose sum is σ = 5780396382. Its totient is φ = 5780396380.

The previous prime is 5780396371. The next prime is 5780396383. The reversal of 5780396381 is 1836930875.

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., 3558122500 + 2222273881 = 59650^2 + 47141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5780396381 is a prime.

It is a super-2 number, since 2×57803963812 = 66825964642955794322, which contains 22 as substring.

Together with 5780396383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5780396383) 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, 2890198190 + 2890198191.

It is an arithmetic number, because the mean of its divisors is an integer number (2890198191).

Almost surely, 25780396381 is an apocalyptic number.

It is an amenable number.

5780396381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5780396381 is an equidigital number, since it uses as much as digits as its factorization.

5780396381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 5780396381 is about 76028.9180575391. The cubic root of 5780396381 is about 1794.6752495834.

The spelling of 5780396381 in words is "five billion, seven hundred eighty million, three hundred ninety-six thousand, three hundred eighty-one".