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13221014232 = 233737546241
BaseRepresentation
bin11000101000000100…
…01010101011011000
31021010101200002222210
430110002022223120
5204034034423412
610023524115120
7645425523666
oct142402125330
937111602883
1013221014232
115674a10748
12268b835aa0
131329105c5a
148d5c5bc36
15525a5c83c
hex31408aad8

13221014232 has 32 divisors (see below), whose sum is σ = 33505314480. Its totient is φ = 4346634240.

The previous prime is 13221014227. The next prime is 13221014237. The reversal of 13221014232 is 23241012231.

It is an interprime number because it is at equal distance from previous prime (13221014227) and next prime (13221014237).

It is a junction number, because it is equal to n+sod(n) for n = 13221014199 and 13221014208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221014237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3771369 + ... + 3774872.

Almost surely, 213221014232 is an apocalyptic number.

13221014232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13221014232 is an abundant number, since it is smaller than the sum of its proper divisors (20284300248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221014232 is a wasteful number, since it uses less digits than its factorization.

13221014232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7546323 (or 7546319 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13221014232 its reverse (23241012231), we get a palindrome (36462026463).

The spelling of 13221014232 in words is "thirteen billion, two hundred twenty-one million, fourteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 73 146 219 292 438 584 876 1752 7546241 15092482 22638723 30184964 45277446 60369928 90554892 181109784 550875593 1101751186 1652626779 2203502372 3305253558 4407004744 6610507116 13221014232