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52282457 = 60738609
BaseRepresentation
bin1100011101110…
…0010001011001
310122101020001022
43013130101121
5101341014312
65104332225
71203251663
oct307342131
9118336038
1052282457
112756a647
1215614075
13aaa7286
146d2d533
1548cb172
hex31dc459

52282457 has 4 divisors (see below), whose sum is σ = 52297140. Its totient is φ = 52267776.

The previous prime is 52282409. The next prime is 52282459. The reversal of 52282457 is 75428225.

52282457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 31315216 + 20967241 = 5596^2 + 4579^2 .

It is a cyclic number.

It is not a de Polignac number, because 52282457 - 212 = 52278361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52282459) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1769 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (13074285).

Almost surely, 252282457 is an apocalyptic number.

It is an amenable number.

52282457 is a deficient number, since it is larger than the sum of its proper divisors (14683).

52282457 is an equidigital number, since it uses as much as digits as its factorization.

52282457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14682.

The product of its digits is 44800, while the sum is 35.

The square root of 52282457 is about 7230.6608964880. The cubic root of 52282457 is about 373.9257123178.

The spelling of 52282457 in words is "fifty-two million, two hundred eighty-two thousand, four hundred fifty-seven".

Divisors: 1 6073 8609 52282457