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54253313 = 57499437
BaseRepresentation
bin1100111011110…
…1011100000001
310210002100112222
43032331130001
5102342101223
65214500425
71226100632
oct316753401
9123070488
1054253313
1128696354
1216204715
13b31736a
1472c3889
154b6a0c8
hex33bd701

54253313 has 4 divisors (see below), whose sum is σ = 54268500. Its totient is φ = 54238128.

The previous prime is 54253279. The next prime is 54253321. The reversal of 54253313 is 31335245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31335245 = 56267049.

It can be written as a sum of positive squares in 2 ways, for example, as 12159169 + 42094144 = 3487^2 + 6488^2 .

It is a cyclic number.

It is not a de Polignac number, because 54253313 - 220 = 53204737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54253363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (13567125).

Almost surely, 254253313 is an apocalyptic number.

It is an amenable number.

54253313 is a deficient number, since it is larger than the sum of its proper divisors (15187).

54253313 is an equidigital number, since it uses as much as digits as its factorization.

54253313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15186.

The product of its digits is 5400, while the sum is 26.

The square root of 54253313 is about 7365.6848289891. The cubic root of 54253313 is about 378.5664198357.

Adding to 54253313 its reverse (31335245), we get a palindrome (85588558).

The spelling of 54253313 in words is "fifty-four million, two hundred fifty-three thousand, three hundred thirteen".

Divisors: 1 5749 9437 54253313