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7109066197 = 10766439871
BaseRepresentation
bin1101001111011101…
…11011110111010101
3200100102221222111001
412213232323313111
5104024410104242
63133231543301
7341112031342
oct64756736725
920312858431
107109066197
113018978722
12146498ab31
13893aa225c
144b622b7c9
152b91aeeb7
hex1a7bbbdd5

7109066197 has 4 divisors (see below), whose sum is σ = 7175506176. Its totient is φ = 7042626220.

The previous prime is 7109066183. The next prime is 7109066213. The reversal of 7109066197 is 7916609017.

7109066197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7916609017 = 56391403903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7109066197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7109066147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33219829 + ... + 33220042.

It is an arithmetic number, because the mean of its divisors is an integer number (1793876544).

Almost surely, 27109066197 is an apocalyptic number.

It is an amenable number.

7109066197 is a deficient number, since it is larger than the sum of its proper divisors (66439979).

7109066197 is a wasteful number, since it uses less digits than its factorization.

7109066197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66439978.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 7109066197 is about 84315.2785502130. The cubic root of 7109066197 is about 1922.8150796236.

The spelling of 7109066197 in words is "seven billion, one hundred nine million, sixty-six thousand, one hundred ninety-seven".

Divisors: 1 107 66439871 7109066197