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5409389 = 52310343
BaseRepresentation
bin10100101000101001101101
3101011211021202
4110220221231
52341100024
6311535245
763656546
oct24505155
911154252
105409389
113065177
12198a525
13117522b
14a0b4cd
1571cbae
hex528a6d

5409389 has 4 divisors (see below), whose sum is σ = 5420256. Its totient is φ = 5398524.

The previous prime is 5409361. The next prime is 5409403. The reversal of 5409389 is 9839045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5409389 - 28 = 5409133 is a prime.

It is a super-2 number, since 2×54093892 = 58522978706642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4649 + ... + 5694.

It is an arithmetic number, because the mean of its divisors is an integer number (1355064).

Almost surely, 25409389 is an apocalyptic number.

It is an amenable number.

5409389 is a deficient number, since it is larger than the sum of its proper divisors (10867).

5409389 is a wasteful number, since it uses less digits than its factorization.

5409389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10866.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 5409389 is about 2325.8093215051. The cubic root of 5409389 is about 175.5426854286.

The spelling of 5409389 in words is "five million, four hundred nine thousand, three hundred eighty-nine".

Divisors: 1 523 10343 5409389