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2005005047 is a prime number
BaseRepresentation
bin111011110000001…
…1111001011110111
312011201202210212012
41313200133023313
513101240130142
6530542114435
7100454155523
oct16740371367
95151683765
102005005047
11939855a71
1247b57ba1b
1325c50a526
141503dcd83
15bb050882
hex7781f2f7

2005005047 has 2 divisors, whose sum is σ = 2005005048. Its totient is φ = 2005005046.

The previous prime is 2005004993. The next prime is 2005005061. The reversal of 2005005047 is 7405005002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2005005047 - 26 = 2005004983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2005005097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002502523 + 1002502524.

It is an arithmetic number, because the mean of its divisors is an integer number (1002502524).

Almost surely, 22005005047 is an apocalyptic number.

2005005047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005005047 is an equidigital number, since it uses as much as digits as its factorization.

2005005047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2005005047 is about 44777.2827112142. The cubic root of 2005005047 is about 1260.9711684112.

The spelling of 2005005047 in words is "two billion, five million, five thousand, forty-seven".