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5000581 is a prime number
BaseRepresentation
bin10011000100110110000101
3100102001111201
4103010312011
52240004311
6255102501
760334645
oct23046605
910361451
105000581
112906013
121811a31
131061131
14942525
1568b9c1
hex4c4d85

5000581 has 2 divisors, whose sum is σ = 5000582. Its totient is φ = 5000580.

The previous prime is 5000563. The next prime is 5000623. The reversal of 5000581 is 1850005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2924100 + 2076481 = 1710^2 + 1441^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000581 - 25 = 5000549 is a prime.

It is a super-3 number, since 3×50005813 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5000551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500290 + 2500291.

It is an arithmetic number, because the mean of its divisors is an integer number (2500291).

Almost surely, 25000581 is an apocalyptic number.

It is an amenable number.

5000581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000581 is an equidigital number, since it uses as much as digits as its factorization.

5000581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 5000581 is about 2236.1978892755. The cubic root of 5000581 is about 171.0042177180.

Adding to 5000581 its reverse (1850005), we get a palindrome (6850586).

It can be divided in two parts, 50005 and 81, that added together give a triangular number (50086 = T316).

The spelling of 5000581 in words is "five million, five hundred eighty-one", and thus it is an aban number.