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11285443 = 13868111
BaseRepresentation
bin101011000011…
…001111000011
3210020100201101
4223003033003
510342113233
61041515231
7164632111
oct53031703
923210641
1011285443
116408a14
123942b17
1324519a0
1416daab1
15ecdc7d
hexac33c3

11285443 has 4 divisors (see below), whose sum is σ = 12153568. Its totient is φ = 10417320.

The previous prime is 11285441. The next prime is 11285447. The reversal of 11285443 is 34458211.

11285443 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 an emirpimes, since its reverse is a distinct semiprime: 34458211 = 37931303.

It is a cyclic number.

It is not a de Polignac number, because 11285443 - 21 = 11285441 is a prime.

It is a super-2 number, since 2×112854432 = 254722447412498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11285441) 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, 434043 + ... + 434068.

It is an arithmetic number, because the mean of its divisors is an integer number (3038392).

Almost surely, 211285443 is an apocalyptic number.

11285443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11285443 is a deficient number, since it is larger than the sum of its proper divisors (868125).

11285443 is an equidigital number, since it uses as much as digits as its factorization.

11285443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868124.

The product of its digits is 3840, while the sum is 28.

The square root of 11285443 is about 3359.3813418545. The cubic root of 11285443 is about 224.3053009097.

The spelling of 11285443 in words is "eleven million, two hundred eighty-five thousand, four hundred forty-three".

Divisors: 1 13 868111 11285443