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2005040355 = 35711882667
BaseRepresentation
bin111011110000010…
…0111110011100011
312011201211121021220
41313200213303203
513101242242410
6530542550123
7100454363463
oct16740476343
95151747256
102005040355
1193987a54a
1247b598343
1325c520616
1415040bba3
15bb05b070
hex77827ce3

2005040355 has 16 divisors (see below), whose sum is σ = 3253250304. Its totient is φ = 1054292960.

The previous prime is 2005040339. The next prime is 2005040357. The reversal of 2005040355 is 5530405002.

It is not a de Polignac number, because 2005040355 - 24 = 2005040339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2005040357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940269 + ... + 942398.

It is an arithmetic number, because the mean of its divisors is an integer number (203328144).

Almost surely, 22005040355 is an apocalyptic number.

2005040355 is a deficient number, since it is larger than the sum of its proper divisors (1248209949).

2005040355 is a wasteful number, since it uses less digits than its factorization.

2005040355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882746.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 2005040355 is about 44777.6769719020. The cubic root of 2005040355 is about 1260.9785702394.

Adding to 2005040355 its reverse (5530405002), we get a palindrome (7535445357).

The spelling of 2005040355 in words is "two billion, five million, forty thousand, three hundred fifty-five".

Divisors: 1 3 5 15 71 213 355 1065 1882667 5648001 9413335 28240005 133669357 401008071 668346785 2005040355