Cookie Consent by FreePrivacyPolicy.com
Search a number
-
+
31032145143449 is a prime number
BaseRepresentation
bin1110000111001001110111…
…11111001110011010011001
311001212122101112212122221122
413003210323333032122121
513031412313124042244
6145555545355415025
76351666325350512
oct703447377163231
9131778345778848
1031032145143449
119984727a21aaa
1235922a2754475
13144141b335718
14793d6cab9a09
1538c33d64c1ee
hex1c393bfce699

31032145143449 has 2 divisors, whose sum is σ = 31032145143450. Its totient is φ = 31032145143448.

The previous prime is 31032145143413. The next prime is 31032145143509. The reversal of 31032145143449 is 94434154123013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30998526087424 + 33619056025 = 5567632^2 + 183355^2 .

It is a cyclic number.

It is not a de Polignac number, because 31032145143449 - 220 = 31032144094873 is a prime.

It is not a weakly prime, because it can be changed into another prime (31032145143049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516072571724 + 15516072571725.

It is an arithmetic number, because the mean of its divisors is an integer number (15516072571725).

Almost surely, 231032145143449 is an apocalyptic number.

It is an amenable number.

31032145143449 is a deficient number, since it is larger than the sum of its proper divisors (1).

31032145143449 is an equidigital number, since it uses as much as digits as its factorization.

31032145143449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 31032145143449 in words is "thirty-one trillion, thirty-two billion, one hundred forty-five million, one hundred forty-three thousand, four hundred forty-nine".