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2105480663 = 111328352027
BaseRepresentation
bin111110101111111…
…0001010111010111
312102201211111111022
41331133301113113
513303000340123
6544531431355
7103114201406
oct17537612727
95381744438
102105480663
11990541870
124a915555b
13277289660
1415d8b563d
15c4c9b1c8
hex7d7f15d7

2105480663 has 16 divisors (see below), whose sum is σ = 2482359936. Its totient is φ = 1760559840.

The previous prime is 2105480633. The next prime is 2105480693. The reversal of 2105480663 is 3660845012.

It is an interprime number because it is at equal distance from previous prime (2105480633) and next prime (2105480693).

It is a de Polignac number, because none of the positive numbers 2k-2105480663 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105480633) 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, 14456 + ... + 66482.

It is an arithmetic number, because the mean of its divisors is an integer number (155147496).

Almost surely, 22105480663 is an apocalyptic number.

2105480663 is a deficient number, since it is larger than the sum of its proper divisors (376879273).

2105480663 is a wasteful number, since it uses less digits than its factorization.

2105480663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52334.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2105480663 is about 45885.5169198299. The cubic root of 2105480663 is about 1281.6922326118.

The spelling of 2105480663 in words is "two billion, one hundred five million, four hundred eighty thousand, six hundred sixty-three".

Divisors: 1 11 13 143 283 3113 3679 40469 52027 572297 676351 7439861 14723641 161960051 191407333 2105480663