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11114021 = 61718013
BaseRepresentation
bin101010011001…
…011000100101
3202220122120102
4222121120211
510321122041
61034113445
7163316252
oct52313045
922818512
1011114021
116301146
12387b885
1323c1959
141694429
15e9809b
hexa99625

11114021 has 4 divisors (see below), whose sum is σ = 11132652. Its totient is φ = 11095392.

The previous prime is 11113933. The next prime is 11114087. The reversal of 11114021 is 12041111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12041111 = 54722013.

It can be written as a sum of positive squares in 2 ways, for example, as 5013121 + 6100900 = 2239^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 11114021 - 214 = 11097637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113993 and 11114011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11114921) 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 3 ways as a sum of consecutive naturals, for example, 8390 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (2783163).

Almost surely, 211114021 is an apocalyptic number.

It is an amenable number.

11114021 is a deficient number, since it is larger than the sum of its proper divisors (18631).

11114021 is an equidigital number, since it uses as much as digits as its factorization.

11114021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18630.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11114021 is about 3333.7697880928. The cubic root of 11114021 is about 223.1637947488.

Adding to 11114021 its reverse (12041111), we get a palindrome (23155132).

The spelling of 11114021 in words is "eleven million, one hundred fourteen thousand, twenty-one".

Divisors: 1 617 18013 11114021