Search a number
-
+
30012001213 is a prime number
BaseRepresentation
bin11011111100110110…
…101100101110111101
32212110120212121221111
4123330312230232331
5442431033014323
621442021202021
72111503541545
oct337466545675
985416777844
1030012001213
1111800aa0797
125996b60311
132aa3a077cc
141649c90325
15ba9be9c0d
hex6fcdacbbd

30012001213 has 2 divisors, whose sum is σ = 30012001214. Its totient is φ = 30012001212.

The previous prime is 30012001181. The next prime is 30012001219. The reversal of 30012001213 is 31210021003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18161066169 + 11850935044 = 134763^2 + 108862^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012001213 - 25 = 30012001181 is a prime.

It is a super-2 number, since 2×300120012132 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30012001193 and 30012001202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30012001219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006000606 + 15006000607.

It is an arithmetic number, because the mean of its divisors is an integer number (15006000607).

Almost surely, 230012001213 is an apocalyptic number.

It is an amenable number.

30012001213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012001213 is an equidigital number, since it uses as much as digits as its factorization.

30012001213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30012001213 its reverse (31210021003), we get a palindrome (61222022216).

The spelling of 30012001213 in words is "thirty billion, twelve million, one thousand, two hundred thirteen".