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52471072 = 257332237
BaseRepresentation
bin1100100000101…
…0010100100000
310122201210210001
43020022110200
5101413033242
65112345344
71204665613
oct310122440
9118653701
1052471072
1127689325
12156a5254
13ab42094
146d7c17a
154916eb7
hex320a520

52471072 has 24 divisors (see below), whose sum is σ = 103489596. Its totient is φ = 26188032.

The previous prime is 52471057. The next prime is 52471079. The reversal of 52471072 is 27017425.

It can be written as a sum of positive squares in 2 ways, for example, as 41422096 + 11048976 = 6436^2 + 3324^2 .

It is a super-3 number, since 3×524710723 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52471072.

It is not an unprimeable number, because it can be changed into a prime (52471079) 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, 22338 + ... + 24574.

Almost surely, 252471072 is an apocalyptic number.

It is an amenable number.

52471072 is a deficient number, since it is larger than the sum of its proper divisors (51018524).

52471072 is a wasteful number, since it uses less digits than its factorization.

52471072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 52471072 is about 7243.6918763846. The cubic root of 52471072 is about 374.3748327252.

Adding to 52471072 its reverse (27017425), we get a palindrome (79488497).

The spelling of 52471072 in words is "fifty-two million, four hundred seventy-one thousand, seventy-two".

Divisors: 1 2 4 8 16 32 733 1466 2237 2932 4474 5864 8948 11728 17896 23456 35792 71584 1639721 3279442 6558884 13117768 26235536 52471072