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7048021 is a prime number
BaseRepresentation
bin11010111000101101010101
3111021002001211
4122320231111
53301014041
6411021421
7113623111
oct32705525
914232054
107048021
113a84312
12243a871
1315ca036
14d16741
15943481
hex6b8b55

7048021 has 2 divisors, whose sum is σ = 7048022. Its totient is φ = 7048020.

The previous prime is 7048009. The next prime is 7048037. The reversal of 7048021 is 1208407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4901796 + 2146225 = 2214^2 + 1465^2 .

It is an emirp because it is prime and its reverse (1208407) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7048021 - 27 = 7047893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7047983 and 7048001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7048061) 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, 3524010 + 3524011.

It is an arithmetic number, because the mean of its divisors is an integer number (3524011).

Almost surely, 27048021 is an apocalyptic number.

It is an amenable number.

7048021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7048021 is an equidigital number, since it uses as much as digits as its factorization.

7048021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 7048021 is about 2654.8109160541. The cubic root of 7048021 is about 191.7295544949.

The spelling of 7048021 in words is "seven million, forty-eight thousand, twenty-one".