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13333030221 = 371049605249
BaseRepresentation
bin11000110101011010…
…11110010101001101
31021102012110010001010
430122231132111031
5204301223431341
610043005035433
7651255613140
oct143255362515
937365403033
1013333030221
115722169a45
122701255b79
131346395ac4
14906a9a057
155307d7716
hex31ab5e54d

13333030221 has 16 divisors (see below), whose sum is σ = 20336400000. Its totient is φ = 7611598848.

The previous prime is 13333030201. The next prime is 13333030261. The reversal of 13333030221 is 12203033331.

It is not a de Polignac number, because 13333030221 - 29 = 13333029709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333030201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280596 + ... + 324653.

It is an arithmetic number, because the mean of its divisors is an integer number (1271025000).

Almost surely, 213333030221 is an apocalyptic number.

It is an amenable number.

13333030221 is a deficient number, since it is larger than the sum of its proper divisors (7003369779).

13333030221 is a wasteful number, since it uses less digits than its factorization.

13333030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606308.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13333030221 its reverse (12203033331), we get a palindrome (25536063552).

The spelling of 13333030221 in words is "thirteen billion, three hundred thirty-three million, thirty thousand, two hundred twenty-one".

Divisors: 1 3 7 21 1049 3147 7343 22029 605249 1815747 4236743 12710229 634906201 1904718603 4444343407 13333030221