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2791061 = 71330671
BaseRepresentation
bin1010101001011010010101
312020210121122
422221122111
51203303221
6135453325
732503130
oct12513225
95223548
102791061
111636a69
12b27245
13769520
14529217
153a1eab
hex2a9695

2791061 has 8 divisors (see below), whose sum is σ = 3435264. Its totient is φ = 2208240.

The previous prime is 2791057. The next prime is 2791069. The reversal of 2791061 is 1601972.

2791061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2791061 - 22 = 2791057 is a prime.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 2791061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2791069) 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, 15245 + ... + 15426.

It is an arithmetic number, because the mean of its divisors is an integer number (429408).

22791061 is an apocalyptic number.

It is an amenable number.

2791061 is a deficient number, since it is larger than the sum of its proper divisors (644203).

2791061 is a wasteful number, since it uses less digits than its factorization.

2791061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30691.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 2791061 is about 1670.6468807022. The cubic root of 2791061 is about 140.7958247352.

The spelling of 2791061 in words is "two million, seven hundred ninety-one thousand, sixty-one".

Divisors: 1 7 13 91 30671 214697 398723 2791061