Search a number
-
+
3215442449 is a prime number
BaseRepresentation
bin1011111110100111…
…1100001000010001
322022002102101211002
42333221330020101
523041123124244
61251022031345
7142452544532
oct27751741021
98262371732
103215442449
11140004055a
12758a18555
133c321768b
14227088689
1513c44da4e
hexbfa7c211

3215442449 has 2 divisors, whose sum is σ = 3215442450. Its totient is φ = 3215442448.

The previous prime is 3215442383. The next prime is 3215442467. The reversal of 3215442449 is 9442445123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2844302224 + 371140225 = 53332^2 + 19265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3215442449 is a prime.

It is a super-2 number, since 2×32154424492 = 20678140285662235202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3215442469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607721224 + 1607721225.

It is an arithmetic number, because the mean of its divisors is an integer number (1607721225).

Almost surely, 23215442449 is an apocalyptic number.

It is an amenable number.

3215442449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3215442449 is an equidigital number, since it uses as much as digits as its factorization.

3215442449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 38.

The square root of 3215442449 is about 56704.8714750329. The cubic root of 3215442449 is about 1475.9792327787.

The spelling of 3215442449 in words is "three billion, two hundred fifteen million, four hundred forty-two thousand, four hundred forty-nine".