Search a number
-
+
30615055521241 is a prime number
BaseRepresentation
bin1101111011000000111111…
…00000100101010111011001
311000101202210212011112111011
412331200133200211113121
513003044113203134431
6145040210133333521
76306602421145162
oct675403740452731
9130352725145434
1030615055521241
119833854788594
1235254a01972a1
131410cab284cb9
1477bac2d88769
1538157b776cb1
hex1bd81f8255d9

30615055521241 has 2 divisors, whose sum is σ = 30615055521242. Its totient is φ = 30615055521240.

The previous prime is 30615055521221. The next prime is 30615055521313. The reversal of 30615055521241 is 14212555051603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16749702169600 + 13865353351641 = 4092640^2 + 3723621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30615055521241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30615055521194 and 30615055521203.

It is not a weakly prime, because it can be changed into another prime (30615055521221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15307527760620 + 15307527760621.

It is an arithmetic number, because the mean of its divisors is an integer number (15307527760621).

Almost surely, 230615055521241 is an apocalyptic number.

It is an amenable number.

30615055521241 is a deficient number, since it is larger than the sum of its proper divisors (1).

30615055521241 is an equidigital number, since it uses as much as digits as its factorization.

30615055521241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 30615055521241 in words is "thirty trillion, six hundred fifteen billion, fifty-five million, five hundred twenty-one thousand, two hundred forty-one".