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12807002011 = 29896437717
BaseRepresentation
bin10111110110101101…
…10101011110011011
31020001112122002222211
423323112311132123
5202212043031021
65514454255551
7632240502166
oct137326653633
936045562884
1012807002011
115482245191
1225950575b7
1312913c97cb
14896c8aadd
154ee52c3e1
hex2fb5b579b

12807002011 has 16 divisors (see below), whose sum is σ = 13420058400. Its totient is φ = 12205847808.

The previous prime is 12807002009. The next prime is 12807002057. The reversal of 12807002011 is 11020070821.

It is not a de Polignac number, because 12807002011 - 21 = 12807002009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12807002311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1655725 + ... + 1663441.

It is an arithmetic number, because the mean of its divisors is an integer number (838753650).

Almost surely, 212807002011 is an apocalyptic number.

12807002011 is a deficient number, since it is larger than the sum of its proper divisors (613056389).

12807002011 is an equidigital number, since it uses as much as digits as its factorization.

12807002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 12807002011 its reverse (11020070821), we get a palindrome (23827072832).

The spelling of 12807002011 in words is "twelve billion, eight hundred seven million, two thousand, eleven".

Divisors: 1 29 89 643 2581 7717 18647 57227 223793 686813 1659583 4962031 19917577 143898899 441620759 12807002011