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36144445 = 57228889
BaseRepresentation
bin1000100111100…
…0010100111101
32112000022212011
42021320110331
533223110240
63330411221
7616136251
oct211702475
975008764
1036144445
1119447947
1210130b11
13764695c
144b2c261
15328e6ea
hex227853d

36144445 has 4 divisors (see below), whose sum is σ = 43373340. Its totient is φ = 28915552.

The previous prime is 36144443. The next prime is 36144473. The reversal of 36144445 is 54444163.

36144445 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: 54444163 = 112348481.

It can be written as a sum of positive squares in 2 ways, for example, as 6081156 + 30063289 = 2466^2 + 5483^2 .

It is a cyclic number.

It is not a de Polignac number, because 36144445 - 21 = 36144443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36144443) 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, 3614440 + ... + 3614449.

It is an arithmetic number, because the mean of its divisors is an integer number (10843335).

Almost surely, 236144445 is an apocalyptic number.

It is an amenable number.

36144445 is a deficient number, since it is larger than the sum of its proper divisors (7228895).

36144445 is an equidigital number, since it uses as much as digits as its factorization.

36144445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7228894.

The product of its digits is 23040, while the sum is 31.

The square root of 36144445 is about 6012.0250332147. The cubic root of 36144445 is about 330.6337530424.

The spelling of 36144445 in words is "thirty-six million, one hundred forty-four thousand, four hundred forty-five".

Divisors: 1 5 7228889 36144445