Search a number
-
+
5430391 is a prime number
BaseRepresentation
bin10100101101110001110111
3101012220002121
4110231301313
52342233031
6312220411
764105021
oct24556167
911186077
105430391
113079a2a
12199a707
131181965
14a15011
15724011
hex52dc77

5430391 has 2 divisors, whose sum is σ = 5430392. Its totient is φ = 5430390.

The previous prime is 5430389. The next prime is 5430401. The reversal of 5430391 is 1930345.

5430391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5430391 - 21 = 5430389 is a prime.

Together with 5430389, it forms a pair of twin primes.

5430391 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5430311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2715195 + 2715196.

It is an arithmetic number, because the mean of its divisors is an integer number (2715196).

Almost surely, 25430391 is an apocalyptic number.

5430391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5430391 is an equidigital number, since it uses as much as digits as its factorization.

5430391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 5430391 is about 2330.3199351162. The cubic root of 5430391 is about 175.7695740518.

The spelling of 5430391 in words is "five million, four hundred thirty thousand, three hundred ninety-one".