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2104055213 = 13161850401
BaseRepresentation
bin111110101101001…
…0101010110101101
312102122011002010212
41331122111112231
513302114231323
6544441112205
7103066113521
oct17532252655
95378132125
102104055213
1198a758907
124a8788665
13276baa8b0
1415d623d81
15c4ab8b78
hex7d6955ad

2104055213 has 4 divisors (see below), whose sum is σ = 2265905628. Its totient is φ = 1942204800.

The previous prime is 2104055197. The next prime is 2104055267. The reversal of 2104055213 is 3125504012.

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 993699529 + 1110355684 = 31523^2 + 33322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104055213 - 24 = 2104055197 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 (2104055113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80925188 + ... + 80925213.

It is an arithmetic number, because the mean of its divisors is an integer number (566476407).

Almost surely, 22104055213 is an apocalyptic number.

It is an amenable number.

2104055213 is a deficient number, since it is larger than the sum of its proper divisors (161850415).

2104055213 is a wasteful number, since it uses less digits than its factorization.

2104055213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161850414.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2104055213 is about 45869.9816110711. The cubic root of 2104055213 is about 1281.4029240654.

Adding to 2104055213 its reverse (3125504012), we get a palindrome (5229559225).

The spelling of 2104055213 in words is "two billion, one hundred four million, fifty-five thousand, two hundred thirteen".

Divisors: 1 13 161850401 2104055213