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13223322221 = 131149677459
BaseRepresentation
bin11000101000010101…
…11110001001101101
31021010120000100221212
430110022332021231
5204040132302341
610024045404205
7645454245554
oct142412761155
937116010855
1013223322221
11567624777a
122690569665
131329733625
148d629cd9b
15525d665eb
hex3142be26d

13223322221 has 8 divisors (see below), whose sum is σ = 13413708000. Its totient is φ = 13034291920.

The previous prime is 13223322209. The next prime is 13223322269. The reversal of 13223322221 is 12222332231.

13223322221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223322221 - 26 = 13223322157 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 (13223322271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319211 + ... + 358248.

It is an arithmetic number, because the mean of its divisors is an integer number (1676713500).

Almost surely, 213223322221 is an apocalyptic number.

It is an amenable number.

13223322221 is a deficient number, since it is larger than the sum of its proper divisors (190385779).

13223322221 is a wasteful number, since it uses less digits than its factorization.

13223322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677739.

The product of its digits is 1728, while the sum is 23.

Adding to 13223322221 its reverse (12222332231), we get a palindrome (25445654452).

The spelling of 13223322221 in words is "thirteen billion, two hundred twenty-three million, three hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 131 149 19519 677459 88747129 100941391 13223322221