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285313529 is a prime number
BaseRepresentation
bin10001000000011…
…000100111111001
3201212212102120202
4101000120213321
51041020013104
644151131545
710033060604
oct2100304771
9655772522
10285313529
11137063306
127b673bb5
1347158097
1429c6d33b
151a0ac51e
hex110189f9

285313529 has 2 divisors, whose sum is σ = 285313530. Its totient is φ = 285313528.

The previous prime is 285313517. The next prime is 285313541. The reversal of 285313529 is 925313582.

It is a balanced prime because it is at equal distance from previous prime (285313517) and next prime (285313541).

It can be written as a sum of positive squares in only one way, i.e., 280495504 + 4818025 = 16748^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 285313529 - 212 = 285309433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 285313492 and 285313501.

It is not a weakly prime, because it can be changed into another prime (285313129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142656764 + 142656765.

It is an arithmetic number, because the mean of its divisors is an integer number (142656765).

Almost surely, 2285313529 is an apocalyptic number.

It is an amenable number.

285313529 is a deficient number, since it is larger than the sum of its proper divisors (1).

285313529 is an equidigital number, since it uses as much as digits as its factorization.

285313529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 285313529 is about 16891.2263912364. The cubic root of 285313529 is about 658.3256680337.

The spelling of 285313529 in words is "two hundred eighty-five million, three hundred thirteen thousand, five hundred twenty-nine".