Search a number
-
+
331031214412489 is a prime number
BaseRepresentation
bin100101101000100100011010…
…1111100011101001011001001
31121102002021102111111012221201
41023101020311330131023021
5321342103411342144424
63132013350203104201
7126504134042100343
oct11321106574351311
91542067374435851
10331031214412489
119652760562a588
1231164097b12061
1311293156974256
145ba5dd3a76293
152840d3540dd44
hex12d1235f1d2c9

331031214412489 has 2 divisors, whose sum is σ = 331031214412490. Its totient is φ = 331031214412488.

The previous prime is 331031214412441. The next prime is 331031214412589. The reversal of 331031214412489 is 984214412130133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313371956359225 + 17659258053264 = 17702315^2 + 4202292^2 .

It is an emirp because it is prime and its reverse (984214412130133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331031214412489 is a prime.

It is not a weakly prime, because it can be changed into another prime (331031214412189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165515607206244 + 165515607206245.

It is an arithmetic number, because the mean of its divisors is an integer number (165515607206245).

Almost surely, 2331031214412489 is an apocalyptic number.

It is an amenable number.

331031214412489 is a deficient number, since it is larger than the sum of its proper divisors (1).

331031214412489 is an equidigital number, since it uses as much as digits as its factorization.

331031214412489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 331031214412489 in words is "three hundred thirty-one trillion, thirty-one billion, two hundred fourteen million, four hundred twelve thousand, four hundred eighty-nine".