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30211103212 = 227995604757
BaseRepresentation
bin11100001000101110…
…001101100111101100
32212222110112001112121
4130020232031213230
5443333020300322
621513452442324
72116442066053
oct341056154754
985873461477
1030211103212
11118a341aaa4
125a317793a4
132b06039144
1416684bb39a
15bbc427ec7
hex708b8d9ec

30211103212 has 12 divisors (see below), whose sum is σ = 53538664480. Its totient is φ = 14914341936.

The previous prime is 30211103183. The next prime is 30211103239. The reversal of 30211103212 is 21230111203.

It is a super-2 number, since 2×302111032122 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47802063 + ... + 47802694.

Almost surely, 230211103212 is an apocalyptic number.

It is an amenable number.

30211103212 is a deficient number, since it is larger than the sum of its proper divisors (23327561268).

30211103212 is a wasteful number, since it uses less digits than its factorization.

30211103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95604840 (or 95604838 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30211103212 its reverse (21230111203), we get a palindrome (51441214415).

The spelling of 30211103212 in words is "thirty billion, two hundred eleven million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 4 79 158 316 95604757 191209514 382419028 7552775803 15105551606 30211103212