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2005362243 = 321492396257
BaseRepresentation
bin111011110000111…
…0110011001000011
312011202102221211200
41313201312121003
513101333042433
6530553512243
7100460204103
oct16741663103
95152387750
102005362243
11939a7a375
1247b712683
1325c603ca1
14150493203
15bb0c1613
hex77876643

2005362243 has 24 divisors (see below), whose sum is σ = 2928744000. Its totient is φ = 1322168064.

The previous prime is 2005362217. The next prime is 2005362257. The reversal of 2005362243 is 3422635002.

It is not a de Polignac number, because 2005362243 - 28 = 2005361987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005362263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317371 + ... + 323627.

It is an arithmetic number, because the mean of its divisors is an integer number (122031000).

Almost surely, 22005362243 is an apocalyptic number.

2005362243 is a deficient number, since it is larger than the sum of its proper divisors (923381757).

2005362243 is a wasteful number, since it uses less digits than its factorization.

2005362243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6651 (or 6648 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 2005362243 is about 44781.2711186273. The cubic root of 2005362243 is about 1261.0460455482.

Adding to 2005362243 its reverse (3422635002), we get a palindrome (5427997245).

The spelling of 2005362243 in words is "two billion, five million, three hundred sixty-two thousand, two hundred forty-three".

Divisors: 1 3 9 149 239 447 717 1341 2151 6257 18771 35611 56313 106833 320499 932293 1495423 2796879 4486269 8390637 13458807 222818027 668454081 2005362243