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3117757189 is a prime number
BaseRepresentation
bin1011100111010101…
…0011001100000101
322001021121110211111
42321311103030011
522341121212224
61233212205021
7140155333051
oct27165231405
98037543744
103117757189
11135a990138
12730169771
133a8c04651
142180dac61
15133aa4d94
hexb9d53305

3117757189 has 2 divisors, whose sum is σ = 3117757190. Its totient is φ = 3117757188.

The previous prime is 3117757187. The next prime is 3117757213. The reversal of 3117757189 is 9817577113.

It is a happy number.

3117757189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3081360100 + 36397089 = 55510^2 + 6033^2 .

It is an emirp because it is prime and its reverse (9817577113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3117757189 - 21 = 3117757187 is a prime.

It is a super-2 number, since 2×31177571892 = 19440819779122363442, which contains 22 as substring.

Together with 3117757187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3117757187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558878594 + 1558878595.

It is an arithmetic number, because the mean of its divisors is an integer number (1558878595).

Almost surely, 23117757189 is an apocalyptic number.

It is an amenable number.

3117757189 is a deficient number, since it is larger than the sum of its proper divisors (1).

3117757189 is an equidigital number, since it uses as much as digits as its factorization.

3117757189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 49.

The square root of 3117757189 is about 55836.8801868443. The cubic root of 3117757189 is about 1460.8784962832.

The spelling of 3117757189 in words is "three billion, one hundred seventeen million, seven hundred fifty-seven thousand, one hundred eighty-nine".