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30211331111 = 1311197207551
BaseRepresentation
bin11100001000101111…
…000101010000100111
32212222110221122011022
4130020233011100213
5443333100043421
621513501401355
72116444035353
oct341057052047
985873848138
1030211331111
11118a3566245
125a3186925b
132b060b8ab0
14166853a463
15bbc4707ab
hex708bc5427

30211331111 has 8 divisors (see below), whose sum is σ = 32538342144. Its totient is φ = 27884757600.

The previous prime is 30211331107. The next prime is 30211331153. The reversal of 30211331111 is 11113311203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30211331111 - 22 = 30211331107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30211331111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30211331911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41786 + ... + 249336.

It is an arithmetic number, because the mean of its divisors is an integer number (4067292768).

Almost surely, 230211331111 is an apocalyptic number.

30211331111 is a deficient number, since it is larger than the sum of its proper divisors (2327011033).

30211331111 is a wasteful number, since it uses less digits than its factorization.

30211331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218761.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 30211331111 its reverse (11113311203), we get a palindrome (41324642314).

The spelling of 30211331111 in words is "thirty billion, two hundred eleven million, three hundred thirty-one thousand, one hundred eleven".

Divisors: 1 13 11197 145561 207551 2698163 2323948547 30211331111