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30130202221 = 741106998207
BaseRepresentation
bin11100000011111001…
…100110011001101101
32212202211021212020121
4130003321212121231
5443201312432341
621501442444541
72114440331110
oct340371463155
985684255217
1030130202221
1111861793979
125a0a663751
132ac2351932
14165b85c577
15bb52974d1
hex703e6666d

30130202221 has 16 divisors (see below), whose sum is σ = 35307740160. Its totient is φ = 25172161920.

The previous prime is 30130202197. The next prime is 30130202231. The reversal of 30130202221 is 12220203103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30130202221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30130202195 and 30130202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130202231) 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, 257700 + ... + 355906.

It is an arithmetic number, because the mean of its divisors is an integer number (2206733760).

Almost surely, 230130202221 is an apocalyptic number.

It is an amenable number.

30130202221 is a deficient number, since it is larger than the sum of its proper divisors (5177537939).

30130202221 is a wasteful number, since it uses less digits than its factorization.

30130202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99324.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30130202221 its reverse (12220203103), we get a palindrome (42350405324).

The spelling of 30130202221 in words is "thirty billion, one hundred thirty million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 7 41 287 1069 7483 43829 98207 306803 687449 4026487 28185409 104983283 734882981 4304314603 30130202221