Search a number
-
+
13097869 is a prime number
BaseRepresentation
bin110001111101…
…101110001101
3220122102220021
4301331232031
511323112434
61144422141
7216221131
oct61755615
926572807
1013097869
117436694
124477951
132937925
141a4d3c1
15123acb4
hexc7db8d

13097869 has 2 divisors, whose sum is σ = 13097870. Its totient is φ = 13097868.

The previous prime is 13097857. The next prime is 13097873. The reversal of 13097869 is 96879031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13053769 + 44100 = 3613^2 + 210^2 .

It is an emirp because it is prime and its reverse (96879031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13097869 is a prime.

It is a super-2 number, since 2×130978692 = 343108344682322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13097809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6548934 + 6548935.

It is an arithmetic number, because the mean of its divisors is an integer number (6548935).

Almost surely, 213097869 is an apocalyptic number.

It is an amenable number.

13097869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13097869 is an equidigital number, since it uses as much as digits as its factorization.

13097869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13097869 is about 3619.0978157546. The cubic root of 13097869 is about 235.7220526017.

The spelling of 13097869 in words is "thirteen million, ninety-seven thousand, eight hundred sixty-nine".