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30241220813 is a prime number
BaseRepresentation
bin11100001010100001…
…000110100011001101
32220001120012012010022
4130022201012203031
5443413223031223
621520450151525
72120256064346
oct341241064315
986046165108
1030241220813
1111909420881
125a3b8825a5
132b0c3527cb
14166c4bb0cd
15bbedc6ac8
hex70a8468cd

30241220813 has 2 divisors, whose sum is σ = 30241220814. Its totient is φ = 30241220812.

The previous prime is 30241220803. The next prime is 30241220839. The reversal of 30241220813 is 31802214203.

It is an a-pointer prime, because the next prime (30241220839) can be obtained adding 30241220813 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24732909289 + 5508311524 = 157267^2 + 74218^2 .

It is an emirp because it is prime and its reverse (31802214203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30241220813 - 26 = 30241220749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30241220803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15120610406 + 15120610407.

It is an arithmetic number, because the mean of its divisors is an integer number (15120610407).

Almost surely, 230241220813 is an apocalyptic number.

It is an amenable number.

30241220813 is a deficient number, since it is larger than the sum of its proper divisors (1).

30241220813 is an equidigital number, since it uses as much as digits as its factorization.

30241220813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 30241220813 in words is "thirty billion, two hundred forty-one million, two hundred twenty thousand, eight hundred thirteen".