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40544193 = 3233715881
BaseRepresentation
bin1001101010101…
…0011111000001
32211021212011210
42122222133001
540334403233
64005000333
71001422434
oct232523701
984255153
1040544193
11209824a8
12116b30a9
138527461
14555581b
15385d163
hex26aa7c1

40544193 has 16 divisors (see below), whose sum is σ = 57937536. Its totient is φ = 25153920.

The previous prime is 40544183. The next prime is 40544197. The reversal of 40544193 is 39144504.

40544193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40544193 - 24 = 40544177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40544193.

It is not an unprimeable number, because it can be changed into a prime (40544197) 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 15 ways as a sum of consecutive naturals, for example, 5388 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (3621096).

Almost surely, 240544193 is an apocalyptic number.

It is an amenable number.

40544193 is a deficient number, since it is larger than the sum of its proper divisors (17393343).

40544193 is a wasteful number, since it uses less digits than its factorization.

40544193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15944.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 40544193 is about 6367.4322140090. The cubic root of 40544193 is about 343.5391368827.

Adding to 40544193 its reverse (39144504), we get a palindrome (79688697).

The spelling of 40544193 in words is "forty million, five hundred forty-four thousand, one hundred ninety-three".

Divisors: 1 3 23 37 69 111 851 2553 15881 47643 365263 587597 1095789 1762791 13514731 40544193