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2011010285 = 5402202057
BaseRepresentation
bin111011111011101…
…1001010011101101
312012011001220111102
41313313121103231
513104304312120
6531314532445
7100556206514
oct16767312355
95164056442
102011010285
11942187879
12481597125
13260830a1b
1415112367b
15bb839d75
hex77dd94ed

2011010285 has 4 divisors (see below), whose sum is σ = 2413212348. Its totient is φ = 1608808224.

The previous prime is 2011010279. The next prime is 2011010303. The reversal of 2011010285 is 5820101102.

It is a happy number.

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 1488339241 + 522671044 = 38579^2 + 22862^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011010285 - 222 = 2006815981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201101024 + ... + 201101033.

It is an arithmetic number, because the mean of its divisors is an integer number (603303087).

Almost surely, 22011010285 is an apocalyptic number.

It is an amenable number.

2011010285 is a deficient number, since it is larger than the sum of its proper divisors (402202063).

2011010285 is an equidigital number, since it uses as much as digits as its factorization.

2011010285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402202062.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 2011010285 is about 44844.2893242830. The cubic root of 2011010285 is about 1262.2288351387.

Adding to 2011010285 its reverse (5820101102), we get a palindrome (7831111387).

The spelling of 2011010285 in words is "two billion, eleven million, ten thousand, two hundred eighty-five".

Divisors: 1 5 402202057 2011010285