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13044211 = 31420781
BaseRepresentation
bin110001110000…
…100111110011
3220112201021221
4301300213303
511314403321
61143325511
7215605525
oct61604763
926481257
1013044211
1173aa344
124450897
13291938b
141a37a15
151229e41
hexc709f3

13044211 has 4 divisors (see below), whose sum is σ = 13465024. Its totient is φ = 12623400.

The previous prime is 13044209. The next prime is 13044217. The reversal of 13044211 is 11244031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11244031 = 70915859.

It is a cyclic number.

It is not a de Polignac number, because 13044211 - 21 = 13044209 is a prime.

It is a super-2 number, since 2×130442112 = 340302881225042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13044217) 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, 210360 + ... + 210421.

It is an arithmetic number, because the mean of its divisors is an integer number (3366256).

Almost surely, 213044211 is an apocalyptic number.

13044211 is a deficient number, since it is larger than the sum of its proper divisors (420813).

13044211 is an equidigital number, since it uses as much as digits as its factorization.

13044211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420812.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 13044211 is about 3611.6770342875. The cubic root of 13044211 is about 235.3997180931.

Adding to 13044211 its reverse (11244031), we get a palindrome (24288242).

The spelling of 13044211 in words is "thirteen million, forty-four thousand, two hundred eleven".

Divisors: 1 31 420781 13044211