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6166206205 = 51233241241
BaseRepresentation
bin1011011111000100…
…01101011011111101
3120220201210201201121
411233202031123331
5100112022044310
62455511110541
7305542613365
oct55742153375
916821721647
106166206205
112684731a95
121241072451
13773650333
14426d159a5
152615190da
hex16f88d6fd

6166206205 has 4 divisors (see below), whose sum is σ = 7399447452. Its totient is φ = 4932964960.

The previous prime is 6166206199. The next prime is 6166206209. The reversal of 6166206205 is 5026026616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1179304281 + 4986901924 = 34341^2 + 70618^2 .

It is not a de Polignac number, because 6166206205 - 29 = 6166205693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166206209) 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, 616620616 + ... + 616620625.

It is an arithmetic number, because the mean of its divisors is an integer number (1849861863).

Almost surely, 26166206205 is an apocalyptic number.

It is an amenable number.

6166206205 is a deficient number, since it is larger than the sum of its proper divisors (1233241247).

6166206205 is a wasteful number, since it uses less digits than its factorization.

6166206205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233241246.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6166206205 is about 78525.1947148175. The cubic root of 6166206205 is about 1833.7467113213.

The spelling of 6166206205 in words is "six billion, one hundred sixty-six million, two hundred six thousand, two hundred five".

Divisors: 1 5 1233241241 6166206205