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13012212211 = 233118249947
BaseRepresentation
bin11000001111001011…
…01001100111110011
31020120211202212110121
430013211221213303
5203122111242321
65551104511111
7640311656515
oct140745514763
936524685417
1013012212211
115578066699
12263191b497
1312c4a8946b
148b6227bb5
15512565441
hex3079699f3

13012212211 has 8 divisors (see below), whose sum is σ = 14015960064. Its totient is φ = 12044964360.

The previous prime is 13012212209. The next prime is 13012212247. The reversal of 13012212211 is 11221221031.

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 13012212211 - 21 = 13012212209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13012212251) 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 7 ways as a sum of consecutive naturals, for example, 9124261 + ... + 9125686.

It is an arithmetic number, because the mean of its divisors is an integer number (1751995008).

Almost surely, 213012212211 is an apocalyptic number.

13012212211 is a deficient number, since it is larger than the sum of its proper divisors (1003747853).

13012212211 is a wasteful number, since it uses less digits than its factorization.

13012212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18250001.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13012212211 its reverse (11221221031), we get a palindrome (24233433242).

The spelling of 13012212211 in words is "thirteen billion, twelve million, two hundred twelve thousand, two hundred eleven".

Divisors: 1 23 31 713 18249947 419748781 565748357 13012212211