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13224232141 = 67927194683
BaseRepresentation
bin11000101000011100…
…11100010011001101
31021010121201121010121
430110032130103031
5204040400412031
610024121104541
7645465055441
oct142416342315
937117647117
1013224232141
11567680937a
122690928151
131329991843
148d6458821
15525e96011
hex31439c4cd

13224232141 has 4 divisors (see below), whose sum is σ = 13224494752. Its totient is φ = 13223969532.

The previous prime is 13224232117. The next prime is 13224232157. The reversal of 13224232141 is 14123242231.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14123242231 = 72017606033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13224232141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224232111) 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, 29415 + ... + 165268.

It is an arithmetic number, because the mean of its divisors is an integer number (3306123688).

Almost surely, 213224232141 is an apocalyptic number.

It is an amenable number.

13224232141 is a deficient number, since it is larger than the sum of its proper divisors (262611).

13224232141 is an equidigital number, since it uses as much as digits as its factorization.

13224232141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262610.

The product of its digits is 2304, while the sum is 25.

Adding to 13224232141 its reverse (14123242231), we get a palindrome (27347474372).

The spelling of 13224232141 in words is "thirteen billion, two hundred twenty-four million, two hundred thirty-two thousand, one hundred forty-one".

Divisors: 1 67927 194683 13224232141