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7944049 = 17467297
BaseRepresentation
bin11110010011011101110001
3112221121012001
4132103131301
54013202144
6442134001
7124344331
oct36233561
915847161
107944049
114536533
1227b1301
131851b29
1410ab0c1
15a6dbd4
hex793771

7944049 has 4 divisors (see below), whose sum is σ = 8411364. Its totient is φ = 7476736.

The previous prime is 7944047. The next prime is 7944059. The reversal of 7944049 is 9404497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9404497 = 29324293.

It can be written as a sum of positive squares in 2 ways, for example, as 2745649 + 5198400 = 1657^2 + 2280^2 .

It is not a de Polignac number, because 7944049 - 21 = 7944047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7943999 and 7944017.

It is not an unprimeable number, because it can be changed into a prime (7944047) 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, 233632 + ... + 233665.

It is an arithmetic number, because the mean of its divisors is an integer number (2102841).

Almost surely, 27944049 is an apocalyptic number.

It is an amenable number.

7944049 is a deficient number, since it is larger than the sum of its proper divisors (467315).

7944049 is a wasteful number, since it uses less digits than its factorization.

7944049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467314.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 7944049 is about 2818.5189373144. The cubic root of 7944049 is about 199.5326504392.

The spelling of 7944049 in words is "seven million, nine hundred forty-four thousand, forty-nine".

Divisors: 1 17 467297 7944049