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2813101 = 10132777
BaseRepresentation
bin1010101110110010101101
312021220211221
422232302231
51210004401
6140143341
732624314
oct12566255
95256757
102813101
111651585
12b37b51
13776575
1453327b
153a87a1
hex2aecad

2813101 has 4 divisors (see below), whose sum is σ = 2816892. Its totient is φ = 2809312.

The previous prime is 2813099. The next prime is 2813117. The reversal of 2813101 is 1013182.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1013182 = 2506591.

It can be written as a sum of positive squares in 2 ways, for example, as 139876 + 2673225 = 374^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2813101 - 21 = 2813099 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 (2813131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376 + ... + 2401.

It is an arithmetic number, because the mean of its divisors is an integer number (704223).

22813101 is an apocalyptic number.

It is an amenable number.

2813101 is a deficient number, since it is larger than the sum of its proper divisors (3791).

2813101 is a wasteful number, since it uses less digits than its factorization.

2813101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2813101 is about 1677.2301571341. The cubic root of 2813101 is about 141.1654580632.

Adding to 2813101 its reverse (1013182), we get a palindrome (3826283).

The spelling of 2813101 in words is "two million, eight hundred thirteen thousand, one hundred one".

Divisors: 1 1013 2777 2813101