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20102213113213 = 711318421538799
BaseRepresentation
bin1001001001000011010010…
…10001011001010101111101
32122011202022210110122111111
410210201221101121111331
510113323313024110323
6110430455035522021
74143223403113330
oct444415121312575
978152283418444
1020102213113213
116450334269920
122307b3a5b9311
13b2a82746670a
144d6d491b0617
1524cd8852cc0d
hex12486945957d

20102213113213 has 16 divisors (see below), whose sum is σ = 25870967193600. Its totient is φ = 15158769836400.

The previous prime is 20102213113183. The next prime is 20102213113223. The reversal of 20102213113213 is 31231131220102.

It is a cyclic number.

It is not a de Polignac number, because 20102213113213 - 229 = 20101676242301 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 (20102213113223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210767013 + ... + 4210771786.

It is an arithmetic number, because the mean of its divisors is an integer number (1616935449600).

Almost surely, 220102213113213 is an apocalyptic number.

It is an amenable number.

20102213113213 is a deficient number, since it is larger than the sum of its proper divisors (5768754080387).

20102213113213 is a wasteful number, since it uses less digits than its factorization.

20102213113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421538848.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20102213113213 its reverse (31231131220102), we get a palindrome (51333344333315).

The spelling of 20102213113213 in words is "twenty trillion, one hundred two billion, two hundred thirteen million, one hundred thirteen thousand, two hundred thirteen".

Divisors: 1 7 11 31 77 217 341 2387 8421538799 58950771593 92636926789 261067702769 648458487523 1827473919383 2871744730459 20102213113213