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52745144 = 236593143
BaseRepresentation
bin1100100100110…
…1001110111000
310200020201201212
43021031032320
5102000321034
65122302252
71210216634
oct311151670
9120221655
1052745144
1127856231
12157b7988
13ac09a5a
14700ddc4
15496d2ce
hex324d3b8

52745144 has 8 divisors (see below), whose sum is σ = 98897160. Its totient is φ = 26372568.

The previous prime is 52745131. The next prime is 52745179. The reversal of 52745144 is 44154725.

52745144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 52745144.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3296564 + ... + 3296579.

It is an arithmetic number, because the mean of its divisors is an integer number (12362145).

Almost surely, 252745144 is an apocalyptic number.

It is an amenable number.

52745144 is a deficient number, since it is larger than the sum of its proper divisors (46152016).

52745144 is a wasteful number, since it uses less digits than its factorization.

52745144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6593149 (or 6593145 counting only the distinct ones).

The product of its digits is 22400, while the sum is 32.

The square root of 52745144 is about 7262.5852146464. The cubic root of 52745144 is about 375.0255247811.

Adding to 52745144 its reverse (44154725), we get a palindrome (96899869).

The spelling of 52745144 in words is "fifty-two million, seven hundred forty-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 6593143 13186286 26372572 52745144