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2005130315 = 5401026063
BaseRepresentation
bin111011110000011…
…1101110001001011
312011202000011200202
41313200331301023
513101303132230
6530544522415
7100455216656
oct16740756113
95152004622
102005130315
119399310a1
1247b62040b
1325c552556
1415043289d
15bb077a45
hex7783dc4b

2005130315 has 4 divisors (see below), whose sum is σ = 2406156384. Its totient is φ = 1604104248.

The previous prime is 2005130311. The next prime is 2005130321. The reversal of 2005130315 is 5130315002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2005130315 - 22 = 2005130311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005130311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200513027 + ... + 200513036.

It is an arithmetic number, because the mean of its divisors is an integer number (601539096).

Almost surely, 22005130315 is an apocalyptic number.

2005130315 is a deficient number, since it is larger than the sum of its proper divisors (401026069).

2005130315 is an equidigital number, since it uses as much as digits as its factorization.

2005130315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401026068.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 2005130315 is about 44778.6814790253. The cubic root of 2005130315 is about 1260.9974287020.

Adding to 2005130315 its reverse (5130315002), we get a palindrome (7135445317).

The spelling of 2005130315 in words is "two billion, five million, one hundred thirty thousand, three hundred fifteen".

Divisors: 1 5 401026063 2005130315