Search a number
-
+
240030449 is a prime number
BaseRepresentation
bin11100100111010…
…01001011110001
3121201122210212122
432103221023301
5442421433244
635452404025
75643140141
oct1623511361
9551583778
10240030449
1111354447a
1268476615
133a961969
1423c42921
15161151ee
hexe4e92f1

240030449 has 2 divisors, whose sum is σ = 240030450. Its totient is φ = 240030448.

The previous prime is 240030443. The next prime is 240030487. The reversal of 240030449 is 944030042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188650225 + 51380224 = 13735^2 + 7168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-240030449 is a prime.

It is a super-2 number, since 2×2400304492 = 115229232894283202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240030443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120015224 + 120015225.

It is an arithmetic number, because the mean of its divisors is an integer number (120015225).

Almost surely, 2240030449 is an apocalyptic number.

It is an amenable number.

240030449 is a deficient number, since it is larger than the sum of its proper divisors (1).

240030449 is an equidigital number, since it uses as much as digits as its factorization.

240030449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 240030449 is about 15492.9160909107. The cubic root of 240030449 is about 621.4727812246.

The spelling of 240030449 in words is "two hundred forty million, thirty thousand, four hundred forty-nine".