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2113080205 = 5659641299
BaseRepresentation
bin111110111110011…
…0000101110001101
312110021010121002211
41331330300232031
513311422031310
6545402350421
7103235612455
oct17574605615
95407117084
102113080205
11994862485
124ab7bb411
13278a1a722
141608d2d65
15c579cc8a
hex7df30b8d

2113080205 has 8 divisors (see below), whose sum is σ = 2539548000. Its totient is φ = 1687896336.

The previous prime is 2113080169. The next prime is 2113080209. The reversal of 2113080205 is 5020803112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2113080205 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113080209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317355 + ... + 323944.

It is an arithmetic number, because the mean of its divisors is an integer number (317443500).

Almost surely, 22113080205 is an apocalyptic number.

It is an amenable number.

2113080205 is a deficient number, since it is larger than the sum of its proper divisors (426467795).

2113080205 is an equidigital number, since it uses as much as digits as its factorization.

2113080205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641963.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 2113080205 is about 45968.2521421035. The cubic root of 2113080205 is about 1283.2324317513.

Adding to 2113080205 its reverse (5020803112), we get a palindrome (7133883317).

The spelling of 2113080205 in words is "two billion, one hundred thirteen million, eighty thousand, two hundred five".

Divisors: 1 5 659 3295 641299 3206495 422616041 2113080205