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13144027 = 131011079
BaseRepresentation
bin110010001000…
…111111011011
3220201210012211
4302020333123
511331102102
61145415551
7216502531
oct62107733
926653184
1013144027
117468336
12449a5b7
132952940
141a62151
1512497d7
hexc88fdb

13144027 has 4 divisors (see below), whose sum is σ = 14155120. Its totient is φ = 12132936.

The previous prime is 13144007. The next prime is 13144049. The reversal of 13144027 is 72044131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72044131 = 97742723.

It is a cyclic number.

It is not a de Polignac number, because 13144027 - 223 = 4755419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13143989 and 13144007.

It is not an unprimeable number, because it can be changed into a prime (13144007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505527 + ... + 505552.

It is an arithmetic number, because the mean of its divisors is an integer number (3538780).

Almost surely, 213144027 is an apocalyptic number.

13144027 is a deficient number, since it is larger than the sum of its proper divisors (1011093).

13144027 is a wasteful number, since it uses less digits than its factorization.

13144027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011092.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 13144027 is about 3625.4692110126. The cubic root of 13144027 is about 235.9986294568.

Adding to 13144027 its reverse (72044131), we get a palindrome (85188158).

The spelling of 13144027 in words is "thirteen million, one hundred forty-four thousand, twenty-seven".

Divisors: 1 13 1011079 13144027