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7128010993 is a prime number
BaseRepresentation
bin1101010001101110…
…01101000011110001
3200101202121110212011
412220313031003301
5104044232322433
63135150002521
7341432044105
oct65067150361
920352543764
107128010993
113028638184
12146b1a6441
138979a62ac
144b895d905
152baba33cd
hex1a8dcd0f1

7128010993 has 2 divisors, whose sum is σ = 7128010994. Its totient is φ = 7128010992.

The previous prime is 7128010931. The next prime is 7128010997. The reversal of 7128010993 is 3990108217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6452426929 + 675584064 = 80327^2 + 25992^2 .

It is a cyclic number.

It is not a de Polignac number, because 7128010993 - 225 = 7094456561 is a prime.

It is not a weakly prime, because it can be changed into another prime (7128010997) 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, 3564005496 + 3564005497.

It is an arithmetic number, because the mean of its divisors is an integer number (3564005497).

Almost surely, 27128010993 is an apocalyptic number.

It is an amenable number.

7128010993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128010993 is an equidigital number, since it uses as much as digits as its factorization.

7128010993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 7128010993 is about 84427.5487800043. The cubic root of 7128010993 is about 1924.5215873467.

The spelling of 7128010993 in words is "seven billion, one hundred twenty-eight million, ten thousand, nine hundred ninety-three".