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1028076949 is a prime number
BaseRepresentation
bin111101010001110…
…011010110010101
32122122111201110001
4331101303112111
54101141430244
6250003131301
734322336614
oct7521632625
92578451401
101028076949
11488360479
12248373b31
13134cbaa73
149a77987b
15603ca5d4
hex3d473595

1028076949 has 2 divisors, whose sum is σ = 1028076950. Its totient is φ = 1028076948.

The previous prime is 1028076899. The next prime is 1028076971. The reversal of 1028076949 is 9496708201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 575664049 + 452412900 = 23993^2 + 21270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028076949 - 27 = 1028076821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1028076899 and 1028076908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028071949) 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, 514038474 + 514038475.

It is an arithmetic number, because the mean of its divisors is an integer number (514038475).

Almost surely, 21028076949 is an apocalyptic number.

It is an amenable number.

1028076949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028076949 is an equidigital number, since it uses as much as digits as its factorization.

1028076949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1028076949 is about 32063.6390479933. The cubic root of 1028076949 is about 1009.2727336431.

The spelling of 1028076949 in words is "one billion, twenty-eight million, seventy-six thousand, nine hundred forty-nine".