Search a number
-
+
30980083 is a prime number
BaseRepresentation
bin111011000101…
…1011111110011
32011021221200111
41312023133303
530412330313
63024002151
7524216641
oct166133763
964257614
1030980083
111653a882
12a460357
136559114
144186191
152abe43d
hex1d8b7f3

30980083 has 2 divisors, whose sum is σ = 30980084. Its totient is φ = 30980082.

The previous prime is 30980077. The next prime is 30980101. The reversal of 30980083 is 38008903.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30980083 is a prime.

It is not a weakly prime, because it can be changed into another prime (30980483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15490041 + 15490042.

It is an arithmetic number, because the mean of its divisors is an integer number (15490042).

Almost surely, 230980083 is an apocalyptic number.

30980083 is a deficient number, since it is larger than the sum of its proper divisors (1).

30980083 is an equidigital number, since it uses as much as digits as its factorization.

30980083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 30980083 is about 5565.9754760509. The cubic root of 30980083 is about 314.0707746126.

Adding to 30980083 its reverse (38008903), we get a palindrome (68988986).

The spelling of 30980083 in words is "thirty million, nine hundred eighty thousand, eighty-three".