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50023081 is a prime number
BaseRepresentation
bin1011111011010…
…0101010101001
310111010102202201
42332310222221
5100301214311
64544100201
71145121613
oct276645251
9114112681
1050023081
1126267099
1214904661
13a495a74
146901db3
1545d19c1
hex2fb4aa9

50023081 has 2 divisors, whose sum is σ = 50023082. Its totient is φ = 50023080.

The previous prime is 50023079. The next prime is 50023097. The reversal of 50023081 is 18032005.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49829481 + 193600 = 7059^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 50023081 - 21 = 50023079 is a prime.

It is a super-2 number, since 2×500230812 = 5004617265465122, which contains 22 as substring.

Together with 50023079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50023481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25011540 + 25011541.

It is an arithmetic number, because the mean of its divisors is an integer number (25011541).

Almost surely, 250023081 is an apocalyptic number.

It is an amenable number.

50023081 is a deficient number, since it is larger than the sum of its proper divisors (1).

50023081 is an equidigital number, since it uses as much as digits as its factorization.

50023081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 50023081 is about 7072.6996967212. The cubic root of 50023081 is about 368.4598285643.

Adding to 50023081 its reverse (18032005), we get a palindrome (68055086).

The spelling of 50023081 in words is "fifty million, twenty-three thousand, eighty-one".