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295249813 is a prime number
BaseRepresentation
bin10001100110010…
…010011110010101
3202120120020121021
4101212102132111
51101040443223
645144121141
710213403425
oct2146223625
9676506537
10295249813
1114172a611
1282a661b1
1349226941
142b2d8485
151adc165d
hex11992795

295249813 has 2 divisors, whose sum is σ = 295249814. Its totient is φ = 295249812.

The previous prime is 295249777. The next prime is 295249831. The reversal of 295249813 is 318942592.

Together with next prime (295249831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189530289 + 105719524 = 13767^2 + 10282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-295249813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 295249813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (295241813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147624906 + 147624907.

It is an arithmetic number, because the mean of its divisors is an integer number (147624907).

Almost surely, 2295249813 is an apocalyptic number.

It is an amenable number.

295249813 is a deficient number, since it is larger than the sum of its proper divisors (1).

295249813 is an equidigital number, since it uses as much as digits as its factorization.

295249813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 43.

The square root of 295249813 is about 17182.8348359635. The cubic root of 295249813 is about 665.8808783635.

The spelling of 295249813 in words is "two hundred ninety-five million, two hundred forty-nine thousand, eight hundred thirteen".