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52089291 = 339719889
BaseRepresentation
bin1100011010110…
…1000111001011
310122000102002000
43012231013023
5101313324131
65100242043
71201515552
oct306550713
9118012060
1052089291
1127448501
1215540323
13aa3a387
146cbcd99
15488dce6
hex31ad1cb

52089291 has 16 divisors (see below), whose sum is σ = 77968800. Its totient is φ = 34366464.

The previous prime is 52089287. The next prime is 52089293. The reversal of 52089291 is 19298025.

It is not a de Polignac number, because 52089291 - 22 = 52089287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52089293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7326 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (4873050).

Almost surely, 252089291 is an apocalyptic number.

52089291 is a deficient number, since it is larger than the sum of its proper divisors (25879509).

52089291 is a wasteful number, since it uses less digits than its factorization.

52089291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19995 (or 19989 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 52089291 is about 7217.2911123219. The cubic root of 52089291 is about 373.4646343186.

The spelling of 52089291 in words is "fifty-two million, eighty-nine thousand, two hundred ninety-one".

Divisors: 1 3 9 27 97 291 873 2619 19889 59667 179001 537003 1929233 5787699 17363097 52089291