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2831028065 = 54144930757
BaseRepresentation
bin1010100010111110…
…0000111101100001
321022022002010102022
42220233200331201
521244220344230
61144530431225
7130104225065
oct25057407541
97268063368
102831028065
111223050318
12670132515
133616a2148
141cbdbdaa5
151188181e5
hexa8be0f61

2831028065 has 16 divisors (see below), whose sum is σ = 3487957200. Its totient is φ = 2204590080.

The previous prime is 2831028017. The next prime is 2831028089. The reversal of 2831028065 is 5608201382.

2831028065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 314601169 + 2516426896 = 17737^2 + 50164^2 .

It is not a de Polignac number, because 2831028065 - 26 = 2831028001 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76667 + ... + 107423.

It is an arithmetic number, because the mean of its divisors is an integer number (217997325).

Almost surely, 22831028065 is an apocalyptic number.

It is an amenable number.

2831028065 is a deficient number, since it is larger than the sum of its proper divisors (656929135).

2831028065 is a wasteful number, since it uses less digits than its factorization.

2831028065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31252.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2831028065 is about 53207.4061104279. The cubic root of 2831028065 is about 1414.6469196082.

The spelling of 2831028065 in words is "two billion, eight hundred thirty-one million, twenty-eight thousand, sixty-five".

Divisors: 1 5 41 205 449 2245 18409 30757 92045 153785 1261037 6305185 13809893 69049465 566205613 2831028065