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80245393 is a prime number
BaseRepresentation
bin1001100100001…
…11001010010001
312120222212222121
410302013022101
5131020323033
611543534241
71663034404
oct462071221
9176885877
1080245393
1141329608
1222a5a381
1313817ca7
14a92bd3b
1570a162d
hex4c87291

80245393 has 2 divisors, whose sum is σ = 80245394. Its totient is φ = 80245392.

The previous prime is 80245387. The next prime is 80245397. The reversal of 80245393 is 39354208.

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., 74252689 + 5992704 = 8617^2 + 2448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80245393 is a prime.

It is equal to p4682833 and since 80245393 and 4682833 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80245397) 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, 40122696 + 40122697.

It is an arithmetic number, because the mean of its divisors is an integer number (40122697).

Almost surely, 280245393 is an apocalyptic number.

It is an amenable number.

80245393 is a deficient number, since it is larger than the sum of its proper divisors (1).

80245393 is an equidigital number, since it uses as much as digits as its factorization.

80245393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 80245393 is about 8957.9792922288. The cubic root of 80245393 is about 431.3270576298.

The spelling of 80245393 in words is "eighty million, two hundred forty-five thousand, three hundred ninety-three".