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206064134065 = 5142811288583
BaseRepresentation
bin1011111111101001100…
…0010010011110110001
3201200212222000121120101
42333322120102132301
511334004404242230
6234355313312401
720613314145106
oct2777230223661
9650788017511
10206064134065
117a433916949
1233b2a565701
131657c78179a
149d8b626aad
155560a29aca
hex2ffa6127b1

206064134065 has 8 divisors (see below), whose sum is σ = 247279549248. Its totient is φ = 164849581680.

The previous prime is 206064134063. The next prime is 206064134093. The reversal of 206064134065 is 560431460602.

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

It is not a de Polignac number, because 206064134065 - 21 = 206064134063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206064134063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569764 + ... + 858346.

It is an arithmetic number, because the mean of its divisors is an integer number (30909943656).

Almost surely, 2206064134065 is an apocalyptic number.

It is an amenable number.

206064134065 is a deficient number, since it is larger than the sum of its proper divisors (41215415183).

206064134065 is a wasteful number, since it uses less digits than its factorization.

206064134065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431399.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 206064134065 its reverse (560431460602), we get a palindrome (766495594667).

The spelling of 206064134065 in words is "two hundred six billion, sixty-four million, one hundred thirty-four thousand, sixty-five".

Divisors: 1 5 142811 288583 714055 1442915 41212826813 206064134065