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11281327 = 13186117
BaseRepresentation
bin101011000010…
…001110101111
3210020011001221
4223002032233
510342000302
61041444211
7164614111
oct53021657
923204057
1011281327
116405912
123940667
13244cb55
1416d93b1
15ecc937
hexac23af

11281327 has 4 divisors (see below), whose sum is σ = 11367576. Its totient is φ = 11195080.

The previous prime is 11281321. The next prime is 11281343. The reversal of 11281327 is 72318211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11281327 - 27 = 11281199 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 (11281321) 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 3 ways as a sum of consecutive naturals, for example, 42928 + ... + 43189.

It is an arithmetic number, because the mean of its divisors is an integer number (2841894).

Almost surely, 211281327 is an apocalyptic number.

11281327 is a deficient number, since it is larger than the sum of its proper divisors (86249).

11281327 is an equidigital number, since it uses as much as digits as its factorization.

11281327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86248.

The product of its digits is 672, while the sum is 25.

The square root of 11281327 is about 3358.7686731896. The cubic root of 11281327 is about 224.2780282281.

Adding to 11281327 its reverse (72318211), we get a palindrome (83599538).

The spelling of 11281327 in words is "eleven million, two hundred eighty-one thousand, three hundred twenty-seven".

Divisors: 1 131 86117 11281327