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52282728 = 2332726149
BaseRepresentation
bin1100011101110…
…0010101101000
310122101020102100
43013130111220
5101341021403
65104333400
71203252531
oct307342550
9118336370
1052282728
112756a873
1215614260
13aaa7434
146d2d688
1548cb2a3
hex31dc568

52282728 has 24 divisors (see below), whose sum is σ = 141599250. Its totient is φ = 17427552.

The previous prime is 52282723. The next prime is 52282777. The reversal of 52282728 is 82728225.

52282728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 37675044 + 14607684 = 6138^2 + 3822^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52282692 and 52282701.

It is not an unprimeable number, because it can be changed into a prime (52282723) 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 5 ways as a sum of consecutive naturals, for example, 363003 + ... + 363146.

Almost surely, 252282728 is an apocalyptic number.

It is an amenable number.

52282728 is an abundant number, since it is smaller than the sum of its proper divisors (89316522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52282728 is a wasteful number, since it uses less digits than its factorization.

52282728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726161 (or 726154 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 52282728 is about 7230.6796361061. The cubic root of 52282728 is about 373.9263583834.

The spelling of 52282728 in words is "fifty-two million, two hundred eighty-two thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 726149 1452298 2178447 2904596 4356894 5809192 6535341 8713788 13070682 17427576 26141364 52282728