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52386281 is a prime number
BaseRepresentation
bin1100011111010…
…1100111101001
310122120111110122
43013311213221
5101402330111
65110453025
71204163453
oct307654751
9118514418
1052386281
1127630652
1215664175
13ab125cc
146d592d3
1548ebcdb
hex31f59e9

52386281 has 2 divisors, whose sum is σ = 52386282. Its totient is φ = 52386280.

The previous prime is 52386253. The next prime is 52386283. The reversal of 52386281 is 18268325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50993881 + 1392400 = 7141^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 52386281 - 222 = 48191977 is a prime.

It is a super-2 number, since 2×523862812 = 5488644874021922, which contains 22 as substring.

Together with 52386283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52386283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26193140 + 26193141.

It is an arithmetic number, because the mean of its divisors is an integer number (26193141).

Almost surely, 252386281 is an apocalyptic number.

It is an amenable number.

52386281 is a deficient number, since it is larger than the sum of its proper divisors (1).

52386281 is an equidigital number, since it uses as much as digits as its factorization.

52386281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 52386281 is about 7237.8367624588. The cubic root of 52386281 is about 374.1730661176.

The spelling of 52386281 in words is "fifty-two million, three hundred eighty-six thousand, two hundred eighty-one".