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11311849 = 97277421
BaseRepresentation
bin101011001001…
…101011101001
3210021200221101
4223021223221
510343434344
61042241401
7165102103
oct53115351
923250841
1011311849
11642683a
123956261
132460a03
141706573
15ed69d4
hexac9ae9

11311849 has 8 divisors (see below), whose sum is σ = 11496968. Its totient is φ = 11128320.

The previous prime is 11311841. The next prime is 11311877. The reversal of 11311849 is 94811311.

11311849 is digitally balanced in base 3, 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 4 ways, for example, as 322624 + 10989225 = 568^2 + 3315^2 .

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 11311849 - 23 = 11311841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11311841) 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 7 ways as a sum of consecutive naturals, for example, 26659 + ... + 27079.

It is an arithmetic number, because the mean of its divisors is an integer number (1437121).

Almost surely, 211311849 is an apocalyptic number.

It is an amenable number.

11311849 is a deficient number, since it is larger than the sum of its proper divisors (185119).

11311849 is an equidigital number, since it uses as much as digits as its factorization.

11311849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795.

The product of its digits is 864, while the sum is 28.

The square root of 11311849 is about 3363.3092334782. The cubic root of 11311849 is about 224.4801099436.

The spelling of 11311849 in words is "eleven million, three hundred eleven thousand, eight hundred forty-nine".

Divisors: 1 97 277 421 26869 40837 116617 11311849