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5438537 = 13418349
BaseRepresentation
bin10100101111110001001001
3101020022021022
4110233301021
52343013122
6312322225
764140536
oct24576111
911208238
105438537
113085065
1219a3375
131185590
14a17d8d
15726642
hex52fc49

5438537 has 4 divisors (see below), whose sum is σ = 5856900. Its totient is φ = 5020176.

The previous prime is 5438501. The next prime is 5438549. The reversal of 5438537 is 7358345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7358345 = 51471669.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 2238016 = 1789^2 + 1496^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438537 - 222 = 1244233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5438497 and 5438506.

It is not an unprimeable number, because it can be changed into a prime (5438137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209162 + ... + 209187.

It is an arithmetic number, because the mean of its divisors is an integer number (1464225).

Almost surely, 25438537 is an apocalyptic number.

It is an amenable number.

5438537 is a deficient number, since it is larger than the sum of its proper divisors (418363).

5438537 is a wasteful number, since it uses less digits than its factorization.

5438537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418362.

The product of its digits is 50400, while the sum is 35.

The square root of 5438537 is about 2332.0671088114. The cubic root of 5438537 is about 175.8574193899.

The spelling of 5438537 in words is "five million, four hundred thirty-eight thousand, five hundred thirty-seven".

Divisors: 1 13 418349 5438537