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36144223 = 257140639
BaseRepresentation
bin1000100111100…
…0010001011111
32112000022112221
42021320101133
533223103343
63330410211
7616135513
oct211702137
975008487
1036144223
1119447765
1210130967
13764681b
144b2c143
15328e5ed
hex227845f

36144223 has 4 divisors (see below), whose sum is σ = 36285120. Its totient is φ = 36003328.

The previous prime is 36144221. The next prime is 36144239. The reversal of 36144223 is 32244163.

36144223 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.

It is a cyclic number.

It is not a de Polignac number, because 36144223 - 21 = 36144221 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 (36144221) 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, 70063 + ... + 70576.

It is an arithmetic number, because the mean of its divisors is an integer number (9071280).

Almost surely, 236144223 is an apocalyptic number.

36144223 is a deficient number, since it is larger than the sum of its proper divisors (140897).

36144223 is a wasteful number, since it uses less digits than its factorization.

36144223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140896.

The product of its digits is 3456, while the sum is 25.

The square root of 36144223 is about 6012.0065701894. The cubic root of 36144223 is about 330.6330761211.

Adding to 36144223 its reverse (32244163), we get a palindrome (68388386).

The spelling of 36144223 in words is "thirty-six million, one hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 257 140639 36144223