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30312023302 = 211471491811087
BaseRepresentation
bin11100001110101111…
…001100010100000110
32220020111102022212201
4130032233030110012
5444034334221202
621531455505114
72122105642531
oct341657142406
986214368781
1030312023302
111194538a830
125a5b52819a
132b20c12682
141677a6ba18
15bc6210387
hex70ebcc506

30312023302 has 64 divisors (see below), whose sum is σ = 51325747200. Its totient is φ = 13308278400.

The previous prime is 30312023297. The next prime is 30312023303. The reversal of 30312023302 is 20332021303.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30312023302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312023303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27885403 + ... + 27886489.

It is an arithmetic number, because the mean of its divisors is an integer number (801964800).

Almost surely, 230312023302 is an apocalyptic number.

30312023302 is a deficient number, since it is larger than the sum of its proper divisors (21013723898).

30312023302 is a wasteful number, since it uses less digits than its factorization.

30312023302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30312023302 its reverse (20332021303), we get a palindrome (50644044605).

The spelling of 30312023302 in words is "thirty billion, three hundred twelve million, twenty-three thousand, three hundred two".

Divisors: 1 2 11 22 47 94 149 181 298 362 517 1034 1087 1639 1991 2174 3278 3982 7003 8507 11957 14006 17014 23914 26969 51089 53938 77033 93577 102178 154066 161963 187154 196747 296659 323926 393494 561979 593318 1123958 1267543 1781593 2164217 2535086 3563186 4328434 7612261 9247109 13942973 15224522 18494218 27885946 29315303 58630606 83734871 101718199 167469742 203436398 322468333 644936666 1377819241 2755638482 15156011651 30312023302