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4538009 = 71933359
BaseRepresentation
bin10001010011111010011001
322112112222102
4101103322121
52130204014
6241133145
753400230
oct21237231
98475872
104538009
11261a523
12162a1b5
13c2b718
14861b17
155e98de
hex453e99

4538009 has 8 divisors (see below), whose sum is σ = 5214720. Its totient is φ = 3868416.

The previous prime is 4537993. The next prime is 4538033. The reversal of 4538009 is 9008354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4538009 - 24 = 4537993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4538069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329 + ... + 3030.

It is an arithmetic number, because the mean of its divisors is an integer number (651840).

Almost surely, 24538009 is an apocalyptic number.

It is an amenable number.

4538009 is a deficient number, since it is larger than the sum of its proper divisors (676711).

4538009 is a wasteful number, since it uses less digits than its factorization.

4538009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 4538009 is about 2130.2603127318. The cubic root of 4538009 is about 165.5598855943.

The spelling of 4538009 in words is "four million, five hundred thirty-eight thousand, nine".

Divisors: 1 7 193 1351 3359 23513 648287 4538009