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7026445 = 51405289
BaseRepresentation
bin11010110011011100001101
3111012222110201
4122303130031
53244321240
6410333501
7113503156
oct32633415
914188421
107026445
113a6a088
12242a291
1315c027a
14d0c92d
1593bd9a
hex6b370d

7026445 has 4 divisors (see below), whose sum is σ = 8431740. Its totient is φ = 5621152.

The previous prime is 7026443. The next prime is 7026463. The reversal of 7026445 is 5446207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5446207 = 13418939.

It can be written as a sum of positive squares in 2 ways, for example, as 1671849 + 5354596 = 1293^2 + 2314^2 .

It is a cyclic number.

It is not a de Polignac number, because 7026445 - 21 = 7026443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7026443) 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 in 3 ways as a sum of consecutive naturals, for example, 702640 + ... + 702649.

It is an arithmetic number, because the mean of its divisors is an integer number (2107935).

Almost surely, 27026445 is an apocalyptic number.

It is an amenable number.

7026445 is a deficient number, since it is larger than the sum of its proper divisors (1405295).

7026445 is a wasteful number, since it uses less digits than its factorization.

7026445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405294.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 7026445 is about 2650.7442351159. The cubic root of 7026445 is about 191.5337082507.

The spelling of 7026445 in words is "seven million, twenty-six thousand, four hundred forty-five".

Divisors: 1 5 1405289 7026445