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52321131 = 3210157559
BaseRepresentation
bin1100011110010…
…1101101101011
310122110012002200
43013211231223
5101343234011
65105231243
71203502512
oct307455553
9118405080
1052321131
1127596705
1215632523
13aabba65
146d3d679
1548d7856
hex31e5b6b

52321131 has 12 divisors (see below), whose sum is σ = 76324560. Its totient is φ = 34534800.

The previous prime is 52321109. The next prime is 52321151. The reversal of 52321131 is 13112325.

It is not a de Polignac number, because 52321131 - 211 = 52319083 is a prime.

It is a super-2 number, since 2×523211312 = 5475001498238322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52321151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27871 + ... + 29688.

It is an arithmetic number, because the mean of its divisors is an integer number (6360380).

Almost surely, 252321131 is an apocalyptic number.

52321131 is a deficient number, since it is larger than the sum of its proper divisors (24003429).

52321131 is a wasteful number, since it uses less digits than its factorization.

52321131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57666 (or 57663 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 52321131 is about 7233.3347081412. The cubic root of 52321131 is about 374.0178887990.

Adding to 52321131 its reverse (13112325), we get a palindrome (65433456).

The spelling of 52321131 in words is "fifty-two million, three hundred twenty-one thousand, one hundred thirty-one".

Divisors: 1 3 9 101 303 909 57559 172677 518031 5813459 17440377 52321131