Search a number
15240133 is a prime number
BaseRepresentation
bin111010001000…
…101111000101
31001200021112101
4322020233011
512400141013
61302352101
7243352606
oct72105705
931607471
1015240133
11866a157
12512b631
133207a3c
142049dad
1515108dd
hexe88bc5

15240133 has 2 divisors, whose sum is σ = 15240134. Its totient is φ = 15240132.

The previous prime is 15240131. The next prime is 15240157. The reversal of 15240133 is 33104251.

15240133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15233409 + 6724 = 3903^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 15240133 - 21 = 15240131 is a prime.

Together with 15240131, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15240133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15240131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620066 + 7620067.

It is an arithmetic number, because the mean of its divisors is an integer number (7620067).

Almost surely, 215240133 is an apocalyptic number.

It is an amenable number.

15240133 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240133 is an equidigital number, since it uses as much as digits as its factorization.

15240133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 15240133 is about 3903.8612936425. The cubic root of 15240133 is about 247.9302884621.

Adding to 15240133 its reverse (33104251), we get a palindrome (48344384).

The spelling of 15240133 in words is "fifteen million, two hundred forty thousand, one hundred thirty-three".