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7082981 is a prime number
BaseRepresentation
bin11011000001001111100101
3111022212000122
4123001033211
53303123411
6411451325
7114130043
oct33011745
914285018
107082981
113aa8604
122456b45
13160cc19
14d25393
1594d9db
hex6c13e5

7082981 has 2 divisors, whose sum is σ = 7082982. Its totient is φ = 7082980.

The previous prime is 7082963. The next prime is 7082983. The reversal of 7082981 is 1892807.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6100900 + 982081 = 2470^2 + 991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7082981 is a prime.

It is a super-2 number, since 2×70829812 = 100337239692722, which contains 22 as substring.

Together with 7082983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7082983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3541490 + 3541491.

It is an arithmetic number, because the mean of its divisors is an integer number (3541491).

Almost surely, 27082981 is an apocalyptic number.

It is an amenable number.

7082981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7082981 is an equidigital number, since it uses as much as digits as its factorization.

7082981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 7082981 is about 2661.3870443812. The cubic root of 7082981 is about 192.0460411142.

The spelling of 7082981 in words is "seven million, eighty-two thousand, nine hundred eighty-one".