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2005120510847 is a prime number
BaseRepresentation
bin11101001011011010011…
…111101110101101111111
321002200120021222202022222
4131023122133232231333
5230322441322321342
64133050055155555
7264602520062066
oct35133237565577
97080507882288
102005120510847
11703404289433
12284732975bbb
1311710b36854c
146d0969611dd
15372577daed2
hex1d2da7eeb7f

2005120510847 has 2 divisors, whose sum is σ = 2005120510848. Its totient is φ = 2005120510846.

The previous prime is 2005120510829. The next prime is 2005120510879. The reversal of 2005120510847 is 7480150215002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2005120510847 - 216 = 2005120445311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005120510747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002560255423 + 1002560255424.

It is an arithmetic number, because the mean of its divisors is an integer number (1002560255424).

Almost surely, 22005120510847 is an apocalyptic number.

2005120510847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005120510847 is an equidigital number, since it uses as much as digits as its factorization.

2005120510847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 35.

Adding to 2005120510847 its reverse (7480150215002), we get a palindrome (9485270725849).

The spelling of 2005120510847 in words is "two trillion, five billion, one hundred twenty million, five hundred ten thousand, eight hundred forty-seven".