Search a number
-
+
231514005404449 is a prime number
BaseRepresentation
bin110100101000111110001110…
…000011010111101100100001
31010100201112010002121012212101
4310220332032003113230201
5220321111140340420244
62140220022114530401
766523222606430365
oct6450761603275441
91110645102535771
10231514005404449
11678495a1547409
1221b70b6bb96a01
139c248a55964a1
1441254a271d2a5
151bb7325a620d4
hexd28f8e0d7b21

231514005404449 has 2 divisors, whose sum is σ = 231514005404450. Its totient is φ = 231514005404448.

The previous prime is 231514005404417. The next prime is 231514005404491. The reversal of 231514005404449 is 944404500415132.

It is a happy number.

231514005404449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186541155212049 + 44972850192400 = 13658007^2 + 6706180^2 .

It is a cyclic number.

It is not a de Polignac number, because 231514005404449 - 25 = 231514005404417 is a prime.

It is a super-2 number, since 2×2315140054044492 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231514005404399 and 231514005404408.

It is not a weakly prime, because it can be changed into another prime (231514005434449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115757002702224 + 115757002702225.

It is an arithmetic number, because the mean of its divisors is an integer number (115757002702225).

Almost surely, 2231514005404449 is an apocalyptic number.

It is an amenable number.

231514005404449 is a deficient number, since it is larger than the sum of its proper divisors (1).

231514005404449 is an equidigital number, since it uses as much as digits as its factorization.

231514005404449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 231514005404449 in words is "two hundred thirty-one trillion, five hundred fourteen billion, five million, four hundred four thousand, four hundred forty-nine".