Search a number
-
+
45949919 is a prime number
BaseRepresentation
bin1010111101001…
…0001111011111
310012110111102212
42233102033133
543230344134
64320511035
71065365531
oct257221737
9105414385
1045949919
1123a34944
121347b47b
13969ab02
146161851
154079bce
hex2bd23df

45949919 has 2 divisors, whose sum is σ = 45949920. Its totient is φ = 45949918.

The previous prime is 45949913. The next prime is 45949921. The reversal of 45949919 is 91994954.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45949919 is a prime.

It is a super-2 number, since 2×459499192 = 4222790112213122, which contains 22 as substring.

Together with 45949921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45949913) 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, 22974959 + 22974960.

It is an arithmetic number, because the mean of its divisors is an integer number (22974960).

Almost surely, 245949919 is an apocalyptic number.

45949919 is a deficient number, since it is larger than the sum of its proper divisors (1).

45949919 is an equidigital number, since it uses as much as digits as its factorization.

45949919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 45949919 is about 6778.6369573831. The cubic root of 45949919 is about 358.1747089997.

The spelling of 45949919 in words is "forty-five million, nine hundred forty-nine thousand, nine hundred nineteen".