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52282729 = 61784737
BaseRepresentation
bin1100011101110…
…0010101101001
310122101020102101
43013130111221
5101341021404
65104333401
71203252532
oct307342551
9118336371
1052282729
112756a874
1215614261
13aaa7435
146d2d689
1548cb2a4
hex31dc569

52282729 has 4 divisors (see below), whose sum is σ = 52368084. Its totient is φ = 52197376.

The previous prime is 52282723. The next prime is 52282777. The reversal of 52282729 is 92728225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16999129 + 35283600 = 4123^2 + 5940^2 .

It is a cyclic number.

It is not a de Polignac number, because 52282729 - 211 = 52280681 is a prime.

It is a super-3 number, since 3×522827293 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52282723) 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, 41752 + ... + 42985.

It is an arithmetic number, because the mean of its divisors is an integer number (13092021).

Almost surely, 252282729 is an apocalyptic number.

It is an amenable number.

52282729 is a deficient number, since it is larger than the sum of its proper divisors (85355).

52282729 is an equidigital number, since it uses as much as digits as its factorization.

52282729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85354.

The product of its digits is 40320, while the sum is 37.

The square root of 52282729 is about 7230.6797052559. The cubic root of 52282729 is about 373.9263607674.

The spelling of 52282729 in words is "fifty-two million, two hundred eighty-two thousand, seven hundred twenty-nine".

Divisors: 1 617 84737 52282729