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2806061 = 61157293
BaseRepresentation
bin1010101101000100101101
312021120012012
422231010231
51204243221
6140051005
732564636
oct12550455
95246165
102806061
111647265
12b33a65
137732bb
1453088d
153a665b
hex2ad12d

2806061 has 8 divisors (see below), whose sum is σ = 2880024. Its totient is φ = 2733120.

The previous prime is 2806049. The next prime is 2806073. The reversal of 2806061 is 1606082.

2806061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2806049) and next prime (2806073).

It can be written as a sum of positive squares in 4 ways, for example, as 184900 + 2621161 = 430^2 + 1619^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2806061 - 218 = 2543917 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 (2806021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9431 + ... + 9723.

It is an arithmetic number, because the mean of its divisors is an integer number (360003).

22806061 is an apocalyptic number.

It is an amenable number.

2806061 is a deficient number, since it is larger than the sum of its proper divisors (73963).

2806061 is a wasteful number, since it uses less digits than its factorization.

2806061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2806061 is about 1675.1301441978. The cubic root of 2806061 is about 141.0476005810.

The spelling of 2806061 in words is "two million, eight hundred six thousand, sixty-one".

Divisors: 1 61 157 293 9577 17873 46001 2806061