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54340853 = 721108997
BaseRepresentation
bin1100111101001…
…0110011110101
310210020210122012
43033102303311
5102402401403
65220414005
71226614100
oct317226365
9123223565
1054340853
11287460a6
1216247305
13b348168
147307737
154b85ed8
hex33d2cf5

54340853 has 6 divisors (see below), whose sum is σ = 63212886. Its totient is φ = 46577832.

The previous prime is 54340831. The next prime is 54340859. The reversal of 54340853 is 35804345.

It can be written as a sum of positive squares in only one way, i.e., 31281649 + 23059204 = 5593^2 + 4802^2 .

It is not a de Polignac number, because 54340853 - 220 = 53292277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54340859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554450 + ... + 554547.

It is an arithmetic number, because the mean of its divisors is an integer number (10535481).

Almost surely, 254340853 is an apocalyptic number.

It is an amenable number.

54340853 is a deficient number, since it is larger than the sum of its proper divisors (8872033).

54340853 is a wasteful number, since it uses less digits than its factorization.

54340853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109011 (or 1109004 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 54340853 is about 7371.6248548064. The cubic root of 54340853 is about 378.7699213635.

The spelling of 54340853 in words is "fifty-four million, three hundred forty thousand, eight hundred fifty-three".

Divisors: 1 7 49 1108997 7762979 54340853