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30232220221 = 737181644899
BaseRepresentation
bin11100001001111110…
…110001001000111101
32220000221020220122001
4130021332301020331
5443403422021341
621515525222301
72120116426510
oct341176611075
986027226561
1030232220221
1111904333575
125a38861991
132b0a520b08
14166b216d77
15bbe1e9d31
hex709fb123d

30232220221 has 16 divisors (see below), whose sum is σ = 35681027200. Its totient is φ = 25073634240.

The previous prime is 30232220201. The next prime is 30232220269. The reversal of 30232220221 is 12202223203.

It is a cyclic number.

It is not a de Polignac number, because 30232220221 - 217 = 30232089149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30232220201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275571 + ... + 369328.

It is an arithmetic number, because the mean of its divisors is an integer number (2230064200).

Almost surely, 230232220221 is an apocalyptic number.

It is an amenable number.

30232220221 is a deficient number, since it is larger than the sum of its proper divisors (5448806979).

30232220221 is a wasteful number, since it uses less digits than its factorization.

30232220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645124.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30232220221 its reverse (12202223203), we get a palindrome (42434443424).

The spelling of 30232220221 in words is "thirty billion, two hundred thirty-two million, two hundred twenty thousand, two hundred twenty-one".

Divisors: 1 7 37 181 259 1267 6697 46879 644899 4514293 23861263 116726719 167028841 817087033 4318888603 30232220221