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13287941 is a prime number
BaseRepresentation
bin110010101100…
…001000000101
3221000002121222
4302230020011
511400203231
61152450125
7220642232
oct62541005
927002558
1013287941
117556477
124549945
1329a32b4
141a9c789
15127727b
hexcac205

13287941 has 2 divisors, whose sum is σ = 13287942. Its totient is φ = 13287940.

The previous prime is 13287917. The next prime is 13287947. The reversal of 13287941 is 14978231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8579041 + 4708900 = 2929^2 + 2170^2 .

It is a cyclic number.

It is not a de Polignac number, because 13287941 - 26 = 13287877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13287947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6643970 + 6643971.

It is an arithmetic number, because the mean of its divisors is an integer number (6643971).

Almost surely, 213287941 is an apocalyptic number.

It is an amenable number.

13287941 is a deficient number, since it is larger than the sum of its proper divisors (1).

13287941 is an equidigital number, since it uses as much as digits as its factorization.

13287941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 13287941 is about 3645.2628163138. The cubic root of 13287941 is about 236.8568215409.

The spelling of 13287941 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred forty-one".