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55110130013 = 91616015733
BaseRepresentation
bin110011010100110100…
…011101100101011101
312021020201102200011102
4303110310131211131
51400331143130023
641152305202445
73660452242661
oct632464354535
9167221380142
1055110130013
11214102603a4
12a820330425
13527367abb3
14294b29c8a1
151678302628
hexcd4d1d95d

55110130013 has 4 divisors (see below), whose sum is σ = 55116154908. Its totient is φ = 55104105120.

The previous prime is 55110129973. The next prime is 55110130027. The reversal of 55110130013 is 31003101155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20295421444 + 34814708569 = 142462^2 + 186587^2 .

It is a cyclic number.

It is not a de Polignac number, because 55110130013 - 214 = 55110113629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110130913) 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, 2998706 + ... + 3017027.

It is an arithmetic number, because the mean of its divisors is an integer number (13779038727).

Almost surely, 255110130013 is an apocalyptic number.

It is an amenable number.

55110130013 is a deficient number, since it is larger than the sum of its proper divisors (6024895).

55110130013 is an equidigital number, since it uses as much as digits as its factorization.

55110130013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024894.

The product of its (nonzero) digits is 225, while the sum is 20.

Adding to 55110130013 its reverse (31003101155), we get a palindrome (86113231168).

The spelling of 55110130013 in words is "fifty-five billion, one hundred ten million, one hundred thirty thousand, thirteen".

Divisors: 1 9161 6015733 55110130013