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2112106765 = 5856349331
BaseRepresentation
bin111110111100100…
…0011000100001101
312110012022010210111
41331321003010031
513311144404030
6545325440021
7103224416446
oct17571030415
95405263714
102112106765
1199425808a
124ab410011
13278769622
1416071c2cd
15c565962a
hex7de4310d

2112106765 has 8 divisors (see below), whose sum is σ = 2534875488. Its totient is φ = 1689453840.

The previous prime is 2112106751. The next prime is 2112106771. The reversal of 2112106765 is 5676012112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2112106765 - 219 = 2111582477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18150 + ... + 67480.

It is an arithmetic number, because the mean of its divisors is an integer number (316859436).

Almost surely, 22112106765 is an apocalyptic number.

It is an amenable number.

2112106765 is a deficient number, since it is larger than the sum of its proper divisors (422768723).

2112106765 is an equidigital number, since it uses as much as digits as its factorization.

2112106765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57899.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 2112106765 is about 45957.6627451832. The cubic root of 2112106765 is about 1283.0353511039.

Adding to 2112106765 its reverse (5676012112), we get a palindrome (7788118877).

The spelling of 2112106765 in words is "two billion, one hundred twelve million, one hundred six thousand, seven hundred sixty-five".

Divisors: 1 5 8563 42815 49331 246655 422421353 2112106765