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7097381689 is a prime number
BaseRepresentation
bin1101001110000100…
…10111001100111001
3200022121222100100111
412213002113030321
5104013412203224
63132133304321
7340610514616
oct64702271471
920277870314
107097381689
113012317a02
121460a950a1
13891540a48
144b486950d
152b8152d94
hex1a7097339

7097381689 has 2 divisors, whose sum is σ = 7097381690. Its totient is φ = 7097381688.

The previous prime is 7097381617. The next prime is 7097381723. The reversal of 7097381689 is 9861837907.

7097381689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5462392464 + 1634989225 = 73908^2 + 40435^2 .

It is an emirp because it is prime and its reverse (9861837907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7097381689 - 225 = 7063827257 is a prime.

It is not a weakly prime, because it can be changed into another prime (7094381689) 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, 3548690844 + 3548690845.

It is an arithmetic number, because the mean of its divisors is an integer number (3548690845).

Almost surely, 27097381689 is an apocalyptic number.

It is an amenable number.

7097381689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7097381689 is an equidigital number, since it uses as much as digits as its factorization.

7097381689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The square root of 7097381689 is about 84245.9594817461. The cubic root of 7097381689 is about 1921.7610514357.

The spelling of 7097381689 in words is "seven billion, ninety-seven million, three hundred eighty-one thousand, six hundred eighty-nine".