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52806724 = 2261216421
BaseRepresentation
bin1100100101110…
…0010001000100
310200100212012121
43021130101010
5102004303344
65123455324
71210564315
oct311342104
9120325177
1052806724
1127898523
1215827544
13ac2baa9
14702860c
154981684
hex325c444

52806724 has 12 divisors (see below), whose sum is σ = 93927148. Its totient is φ = 25970400.

The previous prime is 52806707. The next prime is 52806731. The reversal of 52806724 is 42760825.

It can be written as a sum of positive squares in 2 ways, for example, as 29593600 + 23213124 = 5440^2 + 4818^2 .

It is a super-2 number, since 2×528067242 = 5577100199224352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52806724.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107967 + ... + 108454.

Almost surely, 252806724 is an apocalyptic number.

It is an amenable number.

52806724 is a deficient number, since it is larger than the sum of its proper divisors (41120424).

52806724 is a wasteful number, since it uses less digits than its factorization.

52806724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216486 (or 216484 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 52806724 is about 7266.8235151268. The cubic root of 52806724 is about 375.1714155585.

The spelling of 52806724 in words is "fifty-two million, eight hundred six thousand, seven hundred twenty-four".

Divisors: 1 2 4 61 122 244 216421 432842 865684 13201681 26403362 52806724