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252762481 is a prime number
BaseRepresentation
bin11110001000011…
…01100101110001
3122121121122221101
433010031211301
51004201344411
641025324401
76156305566
oct1704154561
9577548841
10252762481
1111a750214
1270796701
134049bbca
14257d886d
15172cc8c1
hexf10d971

252762481 has 2 divisors, whose sum is σ = 252762482. Its totient is φ = 252762480.

The previous prime is 252762449. The next prime is 252762527. The reversal of 252762481 is 184267252.

It is a happy number.

252762481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134931456 + 117831025 = 11616^2 + 10855^2 .

It is a cyclic number.

It is not a de Polignac number, because 252762481 - 25 = 252762449 is a prime.

It is a super-2 number, since 2×2527624812 = 127777743602550722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252762481.

It is not a weakly prime, because it can be changed into another prime (252762421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126381240 + 126381241.

It is an arithmetic number, because the mean of its divisors is an integer number (126381241).

Almost surely, 2252762481 is an apocalyptic number.

It is an amenable number.

252762481 is a deficient number, since it is larger than the sum of its proper divisors (1).

252762481 is an equidigital number, since it uses as much as digits as its factorization.

252762481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 37.

The square root of 252762481 is about 15898.5056215985. The cubic root of 252762481 is about 632.2723691492.

The spelling of 252762481 in words is "two hundred fifty-two million, seven hundred sixty-two thousand, four hundred eighty-one".