Search a number
-
+
3105249241 is a prime number
BaseRepresentation
bin1011100100010110…
…0101011111011001
322000102002000011011
42321011211133121
522324420433431
61232044133521
7136644116533
oct27105453731
98012060134
103105249241
111353917796
12727b372a1
133a64453b3
142165a2853
15132933cb1
hexb91657d9

3105249241 has 2 divisors, whose sum is σ = 3105249242. Its totient is φ = 3105249240.

The previous prime is 3105249233. The next prime is 3105249281. The reversal of 3105249241 is 1429425013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2009639241 + 1095610000 = 44829^2 + 33100^2 .

It is an emirp because it is prime and its reverse (1429425013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3105249241 - 23 = 3105249233 is a prime.

It is not a weakly prime, because it can be changed into another prime (3105249281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552624620 + 1552624621.

It is an arithmetic number, because the mean of its divisors is an integer number (1552624621).

Almost surely, 23105249241 is an apocalyptic number.

It is an amenable number.

3105249241 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105249241 is an equidigital number, since it uses as much as digits as its factorization.

3105249241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3105249241 is about 55724.7632655357. The cubic root of 3105249241 is about 1458.9222735514.

The spelling of 3105249241 in words is "three billion, one hundred five million, two hundred forty-nine thousand, two hundred forty-one".