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4138049 = 15726357
BaseRepresentation
bin1111110010010001000001
321210020100002
433302101001
52024404144
6224405345
750113166
oct17622101
97706302
104138049
112376a83
121476855
13b1b666
1479a06d
1556b14e
hex3f2441

4138049 has 4 divisors (see below), whose sum is σ = 4164564. Its totient is φ = 4111536.

The previous prime is 4138033. The next prime is 4138051. The reversal of 4138049 is 9408314.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1392400 + 2745649 = 1180^2 + 1657^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138049 - 24 = 4138033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4138249) 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, 13022 + ... + 13335.

It is an arithmetic number, because the mean of its divisors is an integer number (1041141).

Almost surely, 24138049 is an apocalyptic number.

It is an amenable number.

4138049 is a deficient number, since it is larger than the sum of its proper divisors (26515).

4138049 is a wasteful number, since it uses less digits than its factorization.

4138049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26514.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 4138049 is about 2034.2195063464. The cubic root of 4138049 is about 160.5456500680.

The spelling of 4138049 in words is "four million, one hundred thirty-eight thousand, forty-nine".

Divisors: 1 157 26357 4138049