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13213303223 = 19368462711
BaseRepresentation
bin11000100111001001…
…10000000110110111
31021002212011100110212
430103210300012313
5204030101200343
610023050540035
7645303136631
oct142344600667
937085140425
1013213303223
11567062430a
12268913761b
131327636223
148d4c11a51
15525037c18
hex3139301b7

13213303223 has 4 divisors (see below), whose sum is σ = 13281766128. Its totient is φ = 13144840320.

The previous prime is 13213303199. The next prime is 13213303241. The reversal of 13213303223 is 32230331231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13213303223 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 (13213303723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34231163 + ... + 34231548.

It is an arithmetic number, because the mean of its divisors is an integer number (3320441532).

Almost surely, 213213303223 is an apocalyptic number.

13213303223 is a deficient number, since it is larger than the sum of its proper divisors (68462905).

13213303223 is an equidigital number, since it uses as much as digits as its factorization.

13213303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68462904.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13213303223 its reverse (32230331231), we get a palindrome (45443634454).

The spelling of 13213303223 in words is "thirteen billion, two hundred thirteen million, three hundred three thousand, two hundred twenty-three".

Divisors: 1 193 68462711 13213303223