Search a number
-
+
31524343420441 is a prime number
BaseRepresentation
bin1110010101011110101010…
…10010101001011000011001
311010121200211200202210012011
413022233111102221120121
513112443323403423231
6151014030004545521
76432362421600064
oct712572522513031
9133550750683164
1031524343420441
11a054443028533
1236517669b22a1
13147896b043341
147adb01ac98db
1539a04939d9b1
hex1cabd54a9619

31524343420441 has 2 divisors, whose sum is σ = 31524343420442. Its totient is φ = 31524343420440.

The previous prime is 31524343420357. The next prime is 31524343420463. The reversal of 31524343420441 is 14402434342513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29663926531600 + 1860416888841 = 5446460^2 + 1363971^2 .

It is a cyclic number.

It is not a de Polignac number, because 31524343420441 - 27 = 31524343420313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31524343420394 and 31524343420403.

It is not a weakly prime, because it can be changed into another prime (31524343420841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15762171710220 + 15762171710221.

It is an arithmetic number, because the mean of its divisors is an integer number (15762171710221).

Almost surely, 231524343420441 is an apocalyptic number.

It is an amenable number.

31524343420441 is a deficient number, since it is larger than the sum of its proper divisors (1).

31524343420441 is an equidigital number, since it uses as much as digits as its factorization.

31524343420441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 40.

Adding to 31524343420441 its reverse (14402434342513), we get a palindrome (45926777762954).

The spelling of 31524343420441 in words is "thirty-one trillion, five hundred twenty-four billion, three hundred forty-three million, four hundred twenty thousand, four hundred forty-one".