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15241242241 = 43135362511
BaseRepresentation
bin11100011000111001…
…01110011010000001
31110100012002022211101
432030130232122001
5222203224222431
611000212414401
71046456264401
oct161434563201
943305068741
1015241242241
116511313975
122b54317401
13158b813444
14a482a0801
155e30b8961
hex38c72e681

15241242241 has 4 divisors (see below), whose sum is σ = 15276605184. Its totient is φ = 15205879300.

The previous prime is 15241242227. The next prime is 15241242253. The reversal of 15241242241 is 14224214251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15241242241 - 217 = 15241111169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15241242221) 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, 17680825 + ... + 17681686.

It is an arithmetic number, because the mean of its divisors is an integer number (3819151296).

Almost surely, 215241242241 is an apocalyptic number.

It is an amenable number.

15241242241 is a deficient number, since it is larger than the sum of its proper divisors (35362943).

15241242241 is an equidigital number, since it uses as much as digits as its factorization.

15241242241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35362942.

The product of its digits is 5120, while the sum is 28.

Adding to 15241242241 its reverse (14224214251), we get a palindrome (29465456492).

The spelling of 15241242241 in words is "fifteen billion, two hundred forty-one million, two hundred forty-two thousand, two hundred forty-one".

Divisors: 1 431 35362511 15241242241