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2005530015 = 35863154927
BaseRepresentation
bin111011110001001…
…1111010110011111
312011202202110222110
41313202133112133
513101403430030
6531001245103
7100461503166
oct16742372637
95152673873
102005530015
1193a084425
1247b793793
1325c662468
141504d83dd
15bb1061b0
hex7789f59f

2005530015 has 16 divisors (see below), whose sum is σ = 3212587008. Its totient is φ = 1068369696.

The previous prime is 2005530013. The next prime is 2005530029. The reversal of 2005530015 is 5100355002.

It is not a de Polignac number, because 2005530015 - 21 = 2005530013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2005529973 and 2005530000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005530013) 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, 64519 + ... + 90408.

It is an arithmetic number, because the mean of its divisors is an integer number (200786688).

Almost surely, 22005530015 is an apocalyptic number.

2005530015 is a deficient number, since it is larger than the sum of its proper divisors (1207056993).

2005530015 is a wasteful number, since it uses less digits than its factorization.

2005530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155798.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 2005530015 is about 44783.1443179239. The cubic root of 2005530015 is about 1261.0812116498.

Adding to 2005530015 its reverse (5100355002), we get a palindrome (7105885017).

The spelling of 2005530015 in words is "two billion, five million, five hundred thirty thousand, fifteen".

Divisors: 1 3 5 15 863 2589 4315 12945 154927 464781 774635 2323905 133702001 401106003 668510005 2005530015