Search a number
-
+
15240033 = 321989123
BaseRepresentation
bin111010001000…
…101101100001
31001200021101200
4322020231201
512400140113
61302351413
7243352404
oct72105541
931607350
1015240033
11866a076
12512b569
133207993
142049d3b
151510873
hexe88b61

15240033 has 12 divisors (see below), whose sum is σ = 23172240. Its totient is φ = 9625176.

The previous prime is 15240023. The next prime is 15240037. The reversal of 15240033 is 33004251.

It is not a de Polignac number, because 15240033 - 213 = 15231841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15239988 and 15240015.

It is not an unprimeable number, because it can be changed into a prime (15240037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44391 + ... + 44732.

It is an arithmetic number, because the mean of its divisors is an integer number (1931020).

Almost surely, 215240033 is an apocalyptic number.

It is an amenable number.

15240033 is a deficient number, since it is larger than the sum of its proper divisors (7932207).

15240033 is a wasteful number, since it uses less digits than its factorization.

15240033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89148 (or 89145 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 15240033 is about 3903.8484857894. The cubic root of 15240033 is about 247.9297461859.

Adding to 15240033 its reverse (33004251), we get a palindrome (48244284).

The spelling of 15240033 in words is "fifteen million, two hundred forty thousand, thirty-three".

Divisors: 1 3 9 19 57 171 89123 267369 802107 1693337 5080011 15240033