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4538109 = 31512703
BaseRepresentation
bin10001010011111011111101
322112120010010
4101103323331
52130204414
6241133433
753400432
oct21237375
98476103
104538109
11261a604
12162a279
13c2b794
14861b89
155e9959
hex453efd

4538109 has 4 divisors (see below), whose sum is σ = 6050816. Its totient is φ = 3025404.

The previous prime is 4538101. The next prime is 4538113. The reversal of 4538109 is 9018354.

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 not a de Polignac number, because 4538109 - 23 = 4538101 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538101) 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, 756349 + ... + 756354.

It is an arithmetic number, because the mean of its divisors is an integer number (1512704).

Almost surely, 24538109 is an apocalyptic number.

It is an amenable number.

4538109 is a deficient number, since it is larger than the sum of its proper divisors (1512707).

4538109 is a wasteful number, since it uses less digits than its factorization.

4538109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512706.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 4538109 is about 2130.2837839124. The cubic root of 4538109 is about 165.5611016832.

The spelling of 4538109 in words is "four million, five hundred thirty-eight thousand, one hundred nine".

Divisors: 1 3 1512703 4538109