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12900011 is a prime number
BaseRepresentation
bin110001001101…
…011010101011
3220021101111012
4301031122223
511300300021
61140254135
7214435235
oct61153253
926241435
1012900011
117310a73
1243a134b
132898857
1419db255
1511ec35b
hexc4d6ab

12900011 has 2 divisors, whose sum is σ = 12900012. Its totient is φ = 12900010.

The previous prime is 12900001. The next prime is 12900047. The reversal of 12900011 is 11000921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12900011 - 210 = 12898987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12900001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6450005 + 6450006.

It is an arithmetic number, because the mean of its divisors is an integer number (6450006).

Almost surely, 212900011 is an apocalyptic number.

12900011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12900011 is an equidigital number, since it uses as much as digits as its factorization.

12900011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 12900011 is about 3591.6585305399. The cubic root of 12900011 is about 234.5290765497.

Adding to 12900011 its reverse (11000921), we get a palindrome (23900932).

The spelling of 12900011 in words is "twelve million, nine hundred thousand, eleven".