Search a number
-
+
13800791 is a prime number
BaseRepresentation
bin110100101001…
…010101010111
3221222011010102
4310221111113
512013111131
61211444315
7225206354
oct64512527
927864112
1013800791
117876814
12475669b
132b22864
141b9362b
1513291cb
hexd29557

13800791 has 2 divisors, whose sum is σ = 13800792. Its totient is φ = 13800790.

The previous prime is 13800757. The next prime is 13800793. The reversal of 13800791 is 19700831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13800791 is a prime.

Together with 13800793, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13800793) 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 as a sum of consecutive naturals, namely, 6900395 + 6900396.

It is an arithmetic number, because the mean of its divisors is an integer number (6900396).

Almost surely, 213800791 is an apocalyptic number.

13800791 is a deficient number, since it is larger than the sum of its proper divisors (1).

13800791 is an equidigital number, since it uses as much as digits as its factorization.

13800791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 13800791 is about 3714.9415876969. The cubic root of 13800791 is about 239.8656134225.

The spelling of 13800791 in words is "thirteen million, eight hundred thousand, seven hundred ninety-one".