Search a number
-
+
13932541817 is a prime number
BaseRepresentation
bin11001111100111000…
…11011011101111001
31022221222112110100022
430332130123131321
5212013212314232
610222302420225
71002155436305
oct147634333571
938858473308
1013932541817
1159aa613977
122849b91675
1314106502ac
14962556d05
1556825a812
hex33e71b779

13932541817 has 2 divisors, whose sum is σ = 13932541818. Its totient is φ = 13932541816.

The previous prime is 13932541781. The next prime is 13932541853. The reversal of 13932541817 is 71814523931.

Together with previous prime (13932541781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (13932541781) and next prime (13932541853).

It can be written as a sum of positive squares in only one way, i.e., 13932497296 + 44521 = 118036^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 13932541817 - 220 = 13931493241 is a prime.

It is a super-2 number, since 2×139325418172 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13932541877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6966270908 + 6966270909.

It is an arithmetic number, because the mean of its divisors is an integer number (6966270909).

Almost surely, 213932541817 is an apocalyptic number.

It is an amenable number.

13932541817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13932541817 is an equidigital number, since it uses as much as digits as its factorization.

13932541817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 44.

The spelling of 13932541817 in words is "thirteen billion, nine hundred thirty-two million, five hundred forty-one thousand, eight hundred seventeen".