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1028413787 is a prime number
BaseRepresentation
bin111101010011000…
…101100101011011
32122200010211111112
4331103011211123
54101233220122
6250014250535
734325241632
oct7523054533
92580124445
101028413787
11488570555
122484b6a4b
131350a818b
149a826519
15604452e2
hex3d4c595b

1028413787 has 2 divisors, whose sum is σ = 1028413788. Its totient is φ = 1028413786.

The previous prime is 1028413751. The next prime is 1028413807. The reversal of 1028413787 is 7873148201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1028413787 - 26 = 1028413723 is a prime.

It is not a weakly prime, because it can be changed into another prime (1028412787) 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, 514206893 + 514206894.

It is an arithmetic number, because the mean of its divisors is an integer number (514206894).

Almost surely, 21028413787 is an apocalyptic number.

1028413787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028413787 is an equidigital number, since it uses as much as digits as its factorization.

1028413787 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 41.

The square root of 1028413787 is about 32068.8912655240. The cubic root of 1028413787 is about 1009.3829472765.

The spelling of 1028413787 in words is "one billion, twenty-eight million, four hundred thirteen thousand, seven hundred eighty-seven".