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4538131 = 13192967
BaseRepresentation
bin10001010011111100010011
322112120010221
4101103330103
52130210011
6241133511
753400463
oct21237423
98476127
104538131
11261a624
12162a297
13c2b7b0
14861ba3
155e9971
hex453f13

4538131 has 12 divisors (see below), whose sum is σ = 5163312. Its totient is φ = 3964464.

The previous prime is 4538129. The next prime is 4538137. The reversal of 4538131 is 1318354.

It is not a de Polignac number, because 4538131 - 21 = 4538129 is a prime.

It is a super-2 number, since 2×45381312 = 41189265946322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4538096 and 4538105.

It is not an unprimeable number, because it can be changed into a prime (4538137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4210 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (430276).

Almost surely, 24538131 is an apocalyptic number.

4538131 is a deficient number, since it is larger than the sum of its proper divisors (625181).

4538131 is a wasteful number, since it uses less digits than its factorization.

4538131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018 (or 999 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 4538131 is about 2130.2889475374. The cubic root of 4538131 is about 165.5613692203.

The spelling of 4538131 in words is "four million, five hundred thirty-eight thousand, one hundred thirty-one".

Divisors: 1 13 19 247 361 967 4693 12571 18373 238849 349087 4538131