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30841 is a prime number
BaseRepresentation
bin111100001111001
31120022021
413201321
51441331
6354441
7155626
oct74171
946267
1030841
1121198
1215a21
1311065
14b34d
159211
hex7879

30841 has 2 divisors, whose sum is σ = 30842. Its totient is φ = 30840.

The previous prime is 30839. The next prime is 30851. The reversal of 30841 is 14803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29241 + 1600 = 171^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 30841 - 21 = 30839 is a prime.

Together with 30839, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (30851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15420 + 15421.

It is an arithmetic number, because the mean of its divisors is an integer number (15421).

230841 is an apocalyptic number.

It is an amenable number.

30841 is a deficient number, since it is larger than the sum of its proper divisors (1).

30841 is an equidigital number, since it uses as much as digits as its factorization.

30841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30841 is about 175.6160584912. The cubic root of 30841 is about 31.3600069632.

The spelling of 30841 in words is "thirty thousand, eight hundred forty-one".