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7984049 = 70911261
BaseRepresentation
bin11110011101001110110001
3120000122001112
4132131032301
54020442144
6443043105
7124602053
oct36351661
916018045
107984049
114563597
122810495
1318670b8
1410bb8d3
15a7a99e
hex79d3b1

7984049 has 4 divisors (see below), whose sum is σ = 7996020. Its totient is φ = 7972080.

The previous prime is 7984037. The next prime is 7984121. The reversal of 7984049 is 9404897.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9404897 = 89105673.

It can be written as a sum of positive squares in 2 ways, for example, as 5094049 + 2890000 = 2257^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 7984049 - 28 = 7983793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7983997 and 7984015.

It is not an unprimeable number, because it can be changed into a prime (7984349) 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, 4922 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (1999005).

Almost surely, 27984049 is an apocalyptic number.

It is an amenable number.

7984049 is a deficient number, since it is larger than the sum of its proper divisors (11971).

7984049 is a wasteful number, since it uses less digits than its factorization.

7984049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11970.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 7984049 is about 2825.6059527117. The cubic root of 7984049 is about 199.8669865567.

The spelling of 7984049 in words is "seven million, nine hundred eighty-four thousand, forty-nine".

Divisors: 1 709 11261 7984049