Search a number
-
+
24996949 is a prime number
BaseRepresentation
bin101111101011…
…0110001010101
31202000222100221
41133112301111
522344400244
62251434341
7422320255
oct137266125
952028327
1024996949
111312363a
1284559b1
1352429c3
143469965
1522db784
hex17d6c55

24996949 has 2 divisors, whose sum is σ = 24996950. Its totient is φ = 24996948.

The previous prime is 24996947. The next prime is 24996971. The reversal of 24996949 is 94969942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22800625 + 2196324 = 4775^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 24996949 - 21 = 24996947 is a prime.

Together with 24996947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 24996896 and 24996905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24996947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12498474 + 12498475.

It is an arithmetic number, because the mean of its divisors is an integer number (12498475).

Almost surely, 224996949 is an apocalyptic number.

It is an amenable number.

24996949 is a deficient number, since it is larger than the sum of its proper divisors (1).

24996949 is an equidigital number, since it uses as much as digits as its factorization.

24996949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 52.

The square root of 24996949 is about 4999.6948906908. The cubic root of 24996949 is about 292.3898784332.

The spelling of 24996949 in words is "twenty-four million, nine hundred ninety-six thousand, nine hundred forty-nine".