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52571321 = 118953699
BaseRepresentation
bin1100100010001…
…0110010111001
310122220220021222
43020202302321
5101424240241
65114441425
71205564105
oct310426271
9118826258
1052571321
1127747680
1215733275
13ab788ba
146da6905
154936a4b
hex3222cb9

52571321 has 8 divisors (see below), whose sum is σ = 57996000. Its totient is φ = 47254240.

The previous prime is 52571317. The next prime is 52571341. The reversal of 52571321 is 12317525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52571321 - 22 = 52571317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52571341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25871 + ... + 27828.

It is an arithmetic number, because the mean of its divisors is an integer number (7249500).

Almost surely, 252571321 is an apocalyptic number.

It is an amenable number.

52571321 is a deficient number, since it is larger than the sum of its proper divisors (5424679).

52571321 is a wasteful number, since it uses less digits than its factorization.

52571321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53799.

The product of its digits is 2100, while the sum is 26.

The square root of 52571321 is about 7250.6083193067. The cubic root of 52571321 is about 374.6131025946.

Adding to 52571321 its reverse (12317525), we get a palindrome (64888846).

The spelling of 52571321 in words is "fifty-two million, five hundred seventy-one thousand, three hundred twenty-one".

Divisors: 1 11 89 979 53699 590689 4779211 52571321