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7007081 is a prime number
BaseRepresentation
bin11010101110101101101001
3111011222220112
4122232231221
53243211311
6410104105
7113362544
oct32565551
914158815
107007081
113a56584
12241b035
1315b4503
14d0585b
1593628b
hex6aeb69

7007081 has 2 divisors, whose sum is σ = 7007082. Its totient is φ = 7007080.

The previous prime is 7007071. The next prime is 7007083. The reversal of 7007081 is 1807007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6046681 + 960400 = 2459^2 + 980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7007081 is a prime.

It is a super-2 number, since 2×70070812 = 98198368281122, which contains 22 as substring.

Together with 7007083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7007083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3503540 + 3503541.

It is an arithmetic number, because the mean of its divisors is an integer number (3503541).

Almost surely, 27007081 is an apocalyptic number.

It is an amenable number.

7007081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7007081 is an equidigital number, since it uses as much as digits as its factorization.

7007081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 7007081 is about 2647.0891560354. The cubic root of 7007081 is about 191.3575987576.

The spelling of 7007081 in words is "seven million, seven thousand, eighty-one".