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7117021 is a prime number
BaseRepresentation
bin11011001001100011011101
3111101120201101
4123021203131
53310221041
6412313101
7114331222
oct33114335
914346641
107117021
11402113a
122472791
131622572
14d33949
15958b31
hex6c98dd

7117021 has 2 divisors, whose sum is σ = 7117022. Its totient is φ = 7117020.

The previous prime is 7117007. The next prime is 7117027. The reversal of 7117021 is 1207117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7080921 + 36100 = 2661^2 + 190^2 .

It is an emirp because it is prime and its reverse (1207117) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7117021 - 29 = 7116509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7117021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7117027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3558510 + 3558511.

It is an arithmetic number, because the mean of its divisors is an integer number (3558511).

Almost surely, 27117021 is an apocalyptic number.

It is an amenable number.

7117021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7117021 is an equidigital number, since it uses as much as digits as its factorization.

7117021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 7117021 is about 2667.7745406987. The cubic root of 7117021 is about 192.3532000486.

The spelling of 7117021 in words is "seven million, one hundred seventeen thousand, twenty-one".