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52072475 = 5271347487
BaseRepresentation
bin1100011010100…
…1000000011011
310121222120000012
43012221000123
5101312304400
65100032135
71201415540
oct306510033
9117876005
1052072475
1127436904
121553264b
13aa32820
146cb6bc7
154888d35
hex31a901b

52072475 has 48 divisors (see below), whose sum is σ = 81328128. Its totient is φ = 32192640.

The previous prime is 52072453. The next prime is 52072477. The reversal of 52072475 is 57427025.

It is a de Polignac number, because none of the positive numbers 2k-52072475 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52072477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106682 + ... + 107168.

It is an arithmetic number, because the mean of its divisors is an integer number (1694336).

Almost surely, 252072475 is an apocalyptic number.

52072475 is a deficient number, since it is larger than the sum of its proper divisors (29255653).

52072475 is a wasteful number, since it uses less digits than its factorization.

52072475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 52072475 is about 7216.1260382563. The cubic root of 52072475 is about 373.4244414299.

The spelling of 52072475 in words is "fifty-two million, seventy-two thousand, four hundred seventy-five".

Divisors: 1 5 7 13 25 35 47 65 91 175 235 325 329 455 487 611 1175 1645 2275 2435 3055 3409 4277 6331 8225 12175 15275 17045 21385 22889 31655 44317 85225 106925 114445 158275 160223 221585 297557 572225 801115 1107925 1487785 2082899 4005575 7438925 10414495 52072475