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11121293 = 19975569
BaseRepresentation
bin101010011011…
…001010001101
3202221000112202
4222123022031
510321340133
61034211245
7163346411
oct52331215
922830482
1011121293
116306657
123883b25
1323c5061
141696d41
15e9a2e8
hexa9b28d

11121293 has 4 divisors (see below), whose sum is σ = 11128860. Its totient is φ = 11113728.

The previous prime is 11121223. The next prime is 11121307. The reversal of 11121293 is 39212111.

11121293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 39212111 = 145326987.

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 10156969 = 982^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121293 - 28 = 11121037 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 (11121223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (2782215).

Almost surely, 211121293 is an apocalyptic number.

It is an amenable number.

11121293 is a deficient number, since it is larger than the sum of its proper divisors (7567).

11121293 is an equidigital number, since it uses as much as digits as its factorization.

11121293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566.

The product of its digits is 108, while the sum is 20.

The square root of 11121293 is about 3334.8602669377. The cubic root of 11121293 is about 223.2124568036.

The spelling of 11121293 in words is "eleven million, one hundred twenty-one thousand, two hundred ninety-three".

Divisors: 1 1997 5569 11121293