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12900211 is a prime number
BaseRepresentation
bin110001001101…
…011101110011
3220021101202121
4301031131303
511300301321
61140255111
7214435642
oct61153563
926241677
1012900211
117311135
1243a1497
13289897c
1419db359
1511ec441
hexc4d773

12900211 has 2 divisors, whose sum is σ = 12900212. Its totient is φ = 12900210.

The previous prime is 12900197. The next prime is 12900227. The reversal of 12900211 is 11200921.

It is an a-pointer prime, because the next prime (12900227) can be obtained adding 12900211 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (11200921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12900211 - 215 = 12867443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12900011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6450105 + 6450106.

It is an arithmetic number, because the mean of its divisors is an integer number (6450106).

Almost surely, 212900211 is an apocalyptic number.

12900211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12900211 is an equidigital number, since it uses as much as digits as its factorization.

12900211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 12900211 is about 3591.6863727224. The cubic root of 12900211 is about 234.5302885789.

The spelling of 12900211 in words is "twelve million, nine hundred thousand, two hundred eleven".