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13030222 = 229271829
BaseRepresentation
bin110001101101…
…001101001110
3220112000002211
4301231031032
511313431342
61143141034
7215516662
oct61551516
926460084
1013030222
11739a887
12444477a
132912bba
141a328a2
151225c17
hexc6d34e

13030222 has 16 divisors (see below), whose sum is σ = 20318400. Its totient is φ = 6259680.

The previous prime is 13030217. The next prime is 13030229. The reversal of 13030222 is 22203031.

It is a happy number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030229) 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, 15304 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (1269900).

Almost surely, 213030222 is an apocalyptic number.

13030222 is a deficient number, since it is larger than the sum of its proper divisors (7288178).

13030222 is a wasteful number, since it uses less digits than its factorization.

13030222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 13030222 is about 3609.7398798251. The cubic root of 13030222 is about 235.3155381063.

Adding to 13030222 its reverse (22203031), we get a palindrome (35233253).

The spelling of 13030222 in words is "thirteen million, thirty thousand, two hundred twenty-two".

Divisors: 1 2 29 58 271 542 829 1658 7859 15718 24041 48082 224659 449318 6515111 13030222