Search a number
-
+
30303202212 = 22323127153407
BaseRepresentation
bin11100001110001101…
…100010101110100100
32220012212211011121200
4130032031202232210
5444030104432322
621530542442500
72121640653213
oct341615425644
986185734550
1030303202212
1111940405378
125a58593430
132b1c1445aa
14167681307a
15bc556b8ac
hex70e362ba4

30303202212 has 36 divisors (see below), whose sum is σ = 79070724096. Its totient is φ = 9775226160.

The previous prime is 30303202187. The next prime is 30303202273. The reversal of 30303202212 is 21220230303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13575588 + ... + 13577819.

Almost surely, 230303202212 is an apocalyptic number.

It is an amenable number.

30303202212 is an abundant number, since it is smaller than the sum of its proper divisors (48767521884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30303202212 is a wasteful number, since it uses less digits than its factorization.

30303202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27153448 (or 27153443 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30303202212 its reverse (21220230303), we get a palindrome (51523432515).

The spelling of 30303202212 in words is "thirty billion, three hundred three million, two hundred two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 93 124 186 279 372 558 1116 27153407 54306814 81460221 108613628 162920442 244380663 325840884 488761326 841755617 977522652 1683511234 2525266851 3367022468 5050533702 7575800553 10101067404 15151601106 30303202212