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54457065 = 3251393089
BaseRepresentation
bin1100111110111…
…1001011101001
310210110201001100
43033233023221
5102420111230
65223112013
71230606645
oct317571351
9123421040
1054457065
1128815443
12162a2609
13b389020
147337c25
154baa660
hex33ef2e9

54457065 has 24 divisors (see below), whose sum is σ = 101654280. Its totient is φ = 26809344.

The previous prime is 54457063. The next prime is 54457133. The reversal of 54457065 is 56075445.

It is a happy number.

54457065 is a `hidden beast` number, since 544 + 57 + 0 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12194064 + 42263001 = 3492^2 + 6501^2 .

It is not a de Polignac number, because 54457065 - 21 = 54457063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54457063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45960 + ... + 47129.

It is an arithmetic number, because the mean of its divisors is an integer number (4235595).

Almost surely, 254457065 is an apocalyptic number.

It is an amenable number.

54457065 is a deficient number, since it is larger than the sum of its proper divisors (47197215).

54457065 is a wasteful number, since it uses less digits than its factorization.

54457065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93113 (or 93110 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 54457065 is about 7379.5030320476. The cubic root of 54457065 is about 379.0397384323.

The spelling of 54457065 in words is "fifty-four million, four hundred fifty-seven thousand, sixty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 93089 279267 465445 837801 1210157 1396335 3630471 4189005 6050785 10891413 18152355 54457065