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11223389 = 11299941
BaseRepresentation
bin101010110100…
…000101011101
3210010012121002
4222310011131
510333122024
61040320045
7164253152
oct52640535
923105532
1011223389
116376331
123913025
13242c678
1416c2229
15eba6ae
hexab415d

11223389 has 4 divisors (see below), whose sum is σ = 11234460. Its totient is φ = 11212320.

The previous prime is 11223361. The next prime is 11223397. The reversal of 11223389 is 98332211.

11223389 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: 98332211 = 104993739.

It can be written as a sum of positive squares in 2 ways, for example, as 267289 + 10956100 = 517^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223389 - 28 = 11223133 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11273389) 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, 3842 + ... + 6099.

It is an arithmetic number, because the mean of its divisors is an integer number (2808615).

Almost surely, 211223389 is an apocalyptic number.

It is an amenable number.

11223389 is a deficient number, since it is larger than the sum of its proper divisors (11071).

11223389 is an equidigital number, since it uses as much as digits as its factorization.

11223389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its digits is 2592, while the sum is 29.

The square root of 11223389 is about 3350.1326839395. The cubic root of 11223389 is about 223.8934242691.

The spelling of 11223389 in words is "eleven million, two hundred twenty-three thousand, three hundred eighty-nine".

Divisors: 1 1129 9941 11223389