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3125170649 is a prime number
BaseRepresentation
bin1011101001000110…
…0101000111011001
322001210120010012002
42322101211013121
522400020430044
61234035130345
7140305340456
oct27221450731
98053503162
103125170649
111364093a67
127327439b5
133aa5cbb03
142190aa82d
1513456b74e
hexba4651d9

3125170649 has 2 divisors, whose sum is σ = 3125170650. Its totient is φ = 3125170648.

The previous prime is 3125170619. The next prime is 3125170669. The reversal of 3125170649 is 9460715213.

3125170649 is digitally balanced in base 2, 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., 3079473049 + 45697600 = 55493^2 + 6760^2 .

It is a cyclic number.

It is not a de Polignac number, because 3125170649 - 212 = 3125166553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3125170619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1562585324 + 1562585325.

It is an arithmetic number, because the mean of its divisors is an integer number (1562585325).

Almost surely, 23125170649 is an apocalyptic number.

It is an amenable number.

3125170649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3125170649 is an equidigital number, since it uses as much as digits as its factorization.

3125170649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3125170649 is about 55903.2257477151. The cubic root of 3125170649 is about 1462.0354809262.

The spelling of 3125170649 in words is "three billion, one hundred twenty-five million, one hundred seventy thousand, six hundred forty-nine".