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13420211 = 71917173
BaseRepresentation
bin110011001100…
…011010110011
3221020211001212
4303030122303
511413421321
61155350335
7222032660
oct63143263
927224055
1013420211
117636892
1245b23ab
132a1b56c
141ad4a67
1512a155b
hexccc6b3

13420211 has 4 divisors (see below), whose sum is σ = 15337392. Its totient is φ = 11503032.

The previous prime is 13420193. The next prime is 13420223. The reversal of 13420211 is 11202431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13420211 - 214 = 13403827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13420271) 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 in 3 ways as a sum of consecutive naturals, for example, 958580 + ... + 958593.

It is an arithmetic number, because the mean of its divisors is an integer number (3834348).

Almost surely, 213420211 is an apocalyptic number.

13420211 is a deficient number, since it is larger than the sum of its proper divisors (1917181).

13420211 is an equidigital number, since it uses as much as digits as its factorization.

13420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917180.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13420211 is about 3663.3606156097. The cubic root of 13420211 is about 237.6401300464.

Adding to 13420211 its reverse (11202431), we get a palindrome (24622642).

It can be divided in two parts, 13420 and 211, that added together give a palindrome (13631).

The spelling of 13420211 in words is "thirteen million, four hundred twenty thousand, two hundred eleven".

Divisors: 1 7 1917173 13420211