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15052241 = 22976553
BaseRepresentation
bin111001011010…
…110111010001
31001022201210102
4321122313101
512323132431
61254342145
7241641041
oct71326721
931281712
1015052241
118550a76
12505a955
133170369
141ddb721
1514c4dcb
hexe5add1

15052241 has 4 divisors (see below), whose sum is σ = 15061092. Its totient is φ = 15043392.

The previous prime is 15052231. The next prime is 15052249. The reversal of 15052241 is 14225051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14225051 = 29490519.

It can be written as a sum of positive squares in 2 ways, for example, as 6076225 + 8976016 = 2465^2 + 2996^2 .

It is a cyclic number.

It is not a de Polignac number, because 15052241 - 210 = 15051217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15052249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (3765273).

Almost surely, 215052241 is an apocalyptic number.

It is an amenable number.

15052241 is a deficient number, since it is larger than the sum of its proper divisors (8851).

15052241 is an equidigital number, since it uses as much as digits as its factorization.

15052241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8850.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 15052241 is about 3879.7217683746. The cubic root of 15052241 is about 246.9071809996.

Adding to 15052241 its reverse (14225051), we get a palindrome (29277292).

The spelling of 15052241 in words is "fifteen million, fifty-two thousand, two hundred forty-one".

Divisors: 1 2297 6553 15052241