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11385445 = 57331193
BaseRepresentation
bin101011011011…
…101001100101
3210102102220011
4223123221211
510403313240
61044010221
7165526501
oct53335145
923372804
1011385445
116477065
123990971
132488366
141725301
15eed6ea
hexadba65

11385445 has 8 divisors (see below), whose sum is σ = 13850136. Its totient is φ = 8983296.

The previous prime is 11385433. The next prime is 11385449. The reversal of 11385445 is 54458311.

11385445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1361889 + 10023556 = 1167^2 + 3166^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11385445 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 (11385449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15232 + ... + 15961.

It is an arithmetic number, because the mean of its divisors is an integer number (1731267).

Almost surely, 211385445 is an apocalyptic number.

It is an amenable number.

11385445 is a deficient number, since it is larger than the sum of its proper divisors (2464691).

11385445 is an equidigital number, since it uses as much as digits as its factorization.

11385445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31271.

The product of its digits is 9600, while the sum is 31.

The square root of 11385445 is about 3374.2325053262. The cubic root of 11385445 is about 224.9658878326.

It can be divided in two parts, 113 and 85445, that added together give a palindrome (85558).

The spelling of 11385445 in words is "eleven million, three hundred eighty-five thousand, four hundred forty-five".

Divisors: 1 5 73 365 31193 155965 2277089 11385445