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13221043230 = 235440701441
BaseRepresentation
bin11000101000000100…
…10001110000011110
31021010101201120202210
430110002101300132
5204034041340410
610023524501250
7645426004353
oct142402216036
937111646683
1013221043230
115674a3050a
12268b84a826
131329116205
148d5c6862a
15525a66220
hex314091c1e

13221043230 has 16 divisors (see below), whose sum is σ = 31730503824. Its totient is φ = 3525611520.

The previous prime is 13221043217. The next prime is 13221043243. The reversal of 13221043230 is 3234012231.

It is an interprime number because it is at equal distance from previous prime (13221043217) and next prime (13221043243).

It is a junction number, because it is equal to n+sod(n) for n = 13221043197 and 13221043206.

It is a congruent number.

It is an unprimeable number.

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, 220350691 + ... + 220350750.

It is an arithmetic number, because the mean of its divisors is an integer number (1983156489).

Almost surely, 213221043230 is an apocalyptic number.

13221043230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221043230 is an abundant number, since it is smaller than the sum of its proper divisors (18509460594).

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

13221043230 is a wasteful number, since it uses less digits than its factorization.

13221043230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440701451.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13221043230 its reverse (3234012231), we get a palindrome (16455055461).

The spelling of 13221043230 in words is "thirteen billion, two hundred twenty-one million, forty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 440701441 881402882 1322104323 2203507205 2644208646 4407014410 6610521615 13221043230