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54528313 = 77789759
BaseRepresentation
bin1101000000000…
…0100100111001
310210121022210011
43100000210321
5102424401223
65224421521
71231324450
oct320004471
9123538704
1054528313
1128863a24
12163178a1
13b3b2598
147355b97
154bc180d
hex3400939

54528313 has 4 divisors (see below), whose sum is σ = 62318080. Its totient is φ = 46738548.

The previous prime is 54528311. The next prime is 54528317. The reversal of 54528313 is 31382545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31382545 = 56276509.

It is a cyclic number.

It is not a de Polignac number, because 54528313 - 21 = 54528311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54528311) 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, 3894873 + ... + 3894886.

It is an arithmetic number, because the mean of its divisors is an integer number (15579520).

Almost surely, 254528313 is an apocalyptic number.

It is an amenable number.

54528313 is a deficient number, since it is larger than the sum of its proper divisors (7789767).

54528313 is an equidigital number, since it uses as much as digits as its factorization.

54528313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789766.

The product of its digits is 14400, while the sum is 31.

The square root of 54528313 is about 7384.3288794582. The cubic root of 54528313 is about 379.2049698508.

The spelling of 54528313 in words is "fifty-four million, five hundred twenty-eight thousand, three hundred thirteen".

Divisors: 1 7 7789759 54528313