Search a number
-
+
12947141 is a prime number
BaseRepresentation
bin110001011000…
…111011000101
3220100210010202
4301120323011
511303302031
61141300245
7215022524
oct61307305
926323122
1012947141
117343419
124404685
1328b413c
141a104bb
15120b2cb
hexc58ec5

12947141 has 2 divisors, whose sum is σ = 12947142. Its totient is φ = 12947140.

The previous prime is 12947131. The next prime is 12947159. The reversal of 12947141 is 14174921.

12947141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8579041 + 4368100 = 2929^2 + 2090^2 .

It is a cyclic number.

It is not a de Polignac number, because 12947141 - 210 = 12946117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12947101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6473570 + 6473571.

It is an arithmetic number, because the mean of its divisors is an integer number (6473571).

Almost surely, 212947141 is an apocalyptic number.

It is an amenable number.

12947141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12947141 is an equidigital number, since it uses as much as digits as its factorization.

12947141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 12947141 is about 3598.2135845444. The cubic root of 12947141 is about 234.8143455969.

The spelling of 12947141 in words is "twelve million, nine hundred forty-seven thousand, one hundred forty-one".