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11123441 = 721371657
BaseRepresentation
bin101010011011…
…101011110001
3202221010111022
4222123223301
510321422231
61034225225
7163355600
oct52335361
922833438
1011123441
11630822a
123885215
1323c6024
141697a37
15e9ac7b
hexa9baf1

11123441 has 12 divisors (see below), whose sum is σ = 13041828. Its totient is φ = 9459072.

The previous prime is 11123393. The next prime is 11123471. The reversal of 11123441 is 14432111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5017600 + 6105841 = 2240^2 + 2471^2 .

It is not a de Polignac number, because 11123441 - 210 = 11122417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5885 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1086819).

Almost surely, 211123441 is an apocalyptic number.

It is an amenable number.

11123441 is a deficient number, since it is larger than the sum of its proper divisors (1918387).

11123441 is a wasteful number, since it uses less digits than its factorization.

11123441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808 (or 1801 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 11123441 is about 3335.1823038629. The cubic root of 11123441 is about 223.2268265204.

Adding to 11123441 its reverse (14432111), we get a palindrome (25555552).

The spelling of 11123441 in words is "eleven million, one hundred twenty-three thousand, four hundred forty-one".

Divisors: 1 7 49 137 959 1657 6713 11599 81193 227009 1589063 11123441