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5018081 is a prime number
BaseRepresentation
bin10011001001000111100001
3100102221111212
4103021013201
52241034311
6255315505
760436655
oct23110741
910387455
105018081
112918182
12181bb95
1310690a3
14948a65
15691c8b
hex4c91e1

5018081 has 2 divisors, whose sum is σ = 5018082. Its totient is φ = 5018080.

The previous prime is 5018047. The next prime is 5018119. The reversal of 5018081 is 1808105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 1018081 = 2000^2 + 1009^2 .

It is a cyclic number.

It is not a de Polignac number, because 5018081 - 26 = 5018017 is a prime.

It is a super-2 number, since 2×50180812 = 50362273845122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5018381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509040 + 2509041.

It is an arithmetic number, because the mean of its divisors is an integer number (2509041).

Almost surely, 25018081 is an apocalyptic number.

It is an amenable number.

5018081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5018081 is an equidigital number, since it uses as much as digits as its factorization.

5018081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 5018081 is about 2240.1073634985. The cubic root of 5018081 is about 171.2034672086.

The spelling of 5018081 in words is "five million, eighteen thousand, eighty-one".