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52864331 = 1331472791
BaseRepresentation
bin1100100110101…
…0010101001011
310200110210020012
43021222111023
5102013124311
65125022135
71211224262
oct311522513
9120423205
1052864331
1127927833
121585494b
13ac4c090
1470415d9
15499378b
hex326a54b

52864331 has 16 divisors (see below), whose sum is σ = 60039168. Its totient is φ = 46202400.

The previous prime is 52864319. The next prime is 52864333. The reversal of 52864331 is 13346825.

52864331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-52864331 is a prime.

It is a super-2 number, since 2×528643312 = 5589274984155122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52864333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17546 + ... + 20336.

It is an arithmetic number, because the mean of its divisors is an integer number (3752448).

Almost surely, 252864331 is an apocalyptic number.

52864331 is a deficient number, since it is larger than the sum of its proper divisors (7174837).

52864331 is a wasteful number, since it uses less digits than its factorization.

52864331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2882.

The product of its digits is 17280, while the sum is 32.

The square root of 52864331 is about 7270.7861335622. The cubic root of 52864331 is about 375.3077911550.

The spelling of 52864331 in words is "fifty-two million, eight hundred sixty-four thousand, three hundred thirty-one".

Divisors: 1 13 31 47 403 611 1457 2791 18941 36283 86521 131177 1124773 1705301 4066487 52864331