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13221022153 = 82915948157
BaseRepresentation
bin11000101000000100…
…01100100111001001
31021010101200111212011
430110002030213021
5204034040202103
610023524215521
7645425556043
oct142402144711
937111614764
1013221022153
115674a16699
12268b83a5a1
131329109741
148d5c60a93
15525a5ed6d
hex31408c9c9

13221022153 has 4 divisors (see below), whose sum is σ = 13236971140. Its totient is φ = 13205073168.

The previous prime is 13221022147. The next prime is 13221022159. The reversal of 13221022153 is 35122012231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35122012231 = 89713915061.

It is an interprime number because it is at equal distance from previous prime (13221022147) and next prime (13221022159).

It can be written as a sum of positive squares in 2 ways, for example, as 4815249664 + 8405772489 = 69392^2 + 91683^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221022153 - 221 = 13218925001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221022159) 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 3 ways as a sum of consecutive naturals, for example, 7973250 + ... + 7974907.

It is an arithmetic number, because the mean of its divisors is an integer number (3309242785).

Almost surely, 213221022153 is an apocalyptic number.

It is an amenable number.

13221022153 is a deficient number, since it is larger than the sum of its proper divisors (15948987).

13221022153 is an equidigital number, since it uses as much as digits as its factorization.

13221022153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15948986.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13221022153 its reverse (35122012231), we get a palindrome (48343034384).

The spelling of 13221022153 in words is "thirteen billion, two hundred twenty-one million, twenty-two thousand, one hundred fifty-three".

Divisors: 1 829 15948157 13221022153