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30012102311 = 171765417783
BaseRepresentation
bin11011111100110111…
…000101011010100111
32212110121001202121212
4123330313011122213
5442431044233221
621442023302035
72111504442362
oct337467053247
985417052555
1030012102311
111180105a744
125996baa91b
132aa3a41829
141649cb90d9
15ba9c19b5b
hex6fcdc56a7

30012102311 has 4 divisors (see below), whose sum is σ = 31777520112. Its totient is φ = 28246684512.

The previous prime is 30012102287. The next prime is 30012102313. The reversal of 30012102311 is 11320121003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11320121003 = 51581219463.

It is a cyclic number.

It is not a de Polignac number, because 30012102311 - 226 = 29944993447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012102313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882708875 + ... + 882708908.

It is an arithmetic number, because the mean of its divisors is an integer number (7944380028).

Almost surely, 230012102311 is an apocalyptic number.

30012102311 is a deficient number, since it is larger than the sum of its proper divisors (1765417801).

30012102311 is a wasteful number, since it uses less digits than its factorization.

30012102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765417800.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30012102311 its reverse (11320121003), we get a palindrome (41332223314).

The spelling of 30012102311 in words is "thirty billion, twelve million, one hundred two thousand, three hundred eleven".

Divisors: 1 17 1765417783 30012102311