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52471071 = 345571163
BaseRepresentation
bin1100100000101…
…0010100011111
310122201210210000
43020022110133
5101413033241
65112345343
71204665612
oct310122437
9118653700
1052471071
1127689324
12156a5253
13ab42093
146d7c179
154916eb6
hex320a51f

52471071 has 20 divisors (see below), whose sum is σ = 78590952. Its totient is φ = 34887888.

The previous prime is 52471057. The next prime is 52471079. The reversal of 52471071 is 17017425.

52471071 is a `hidden beast` number, since 524 + 71 + 0 + 71 = 666.

It is not a de Polignac number, because 52471071 - 25 = 52471039 is a prime.

It is a super-3 number, since 3×524710713 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 44536 + ... + 45698.

Almost surely, 252471071 is an apocalyptic number.

52471071 is a deficient number, since it is larger than the sum of its proper divisors (26119881).

52471071 is a wasteful number, since it uses less digits than its factorization.

52471071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 52471071 is about 7243.6918073590. The cubic root of 52471071 is about 374.3748303469.

Adding to 52471071 its reverse (17017425), we get a palindrome (69488496).

The spelling of 52471071 in words is "fifty-two million, four hundred seventy-one thousand, seventy-one".

Divisors: 1 3 9 27 81 557 1163 1671 3489 5013 10467 15039 31401 45117 94203 647791 1943373 5830119 17490357 52471071