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1028074387 is a prime number
BaseRepresentation
bin111101010001110…
…010101110010011
32122122111120221011
4331101302232103
54101141340022
6250003111351
734322326264
oct7521625623
92578446834
101028074387
1148835955a
12248372557
13134cb9852
149a77896b
15603c9977
hex3d472b93

1028074387 has 2 divisors, whose sum is σ = 1028074388. Its totient is φ = 1028074386.

The previous prime is 1028074361. The next prime is 1028074417. The reversal of 1028074387 is 7834708201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1028074387 - 27 = 1028074259 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028074357) 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, 514037193 + 514037194.

It is an arithmetic number, because the mean of its divisors is an integer number (514037194).

Almost surely, 21028074387 is an apocalyptic number.

1028074387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028074387 is an equidigital number, since it uses as much as digits as its factorization.

1028074387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 1028074387 is about 32063.5990961713. The cubic root of 1028074387 is about 1009.2718952627.

The spelling of 1028074387 in words is "one billion, twenty-eight million, seventy-four thousand, three hundred eighty-seven".