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6212225 = 521747311
BaseRepresentation
bin10111101100101010000001
3102200121120102
4113230222001
53042242400
6341052145
7103542305
oct27545201
912617512
106212225
113563378
1220b7055
131396796
14b79d05
1582a9d5
hex5eca81

6212225 has 24 divisors (see below), whose sum is σ = 8356608. Its totient is φ = 4563200.

The previous prime is 6212203. The next prime is 6212243. The reversal of 6212225 is 5222126.

6212225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6212225 - 26 = 6212161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6212197 and 6212206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19820 + ... + 20130.

It is an arithmetic number, because the mean of its divisors is an integer number (348192).

Almost surely, 26212225 is an apocalyptic number.

It is an amenable number.

6212225 is a deficient number, since it is larger than the sum of its proper divisors (2144383).

6212225 is a wasteful number, since it uses less digits than its factorization.

6212225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 380 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 6212225 is about 2492.4335497662. The cubic root of 6212225 is about 183.8297199860.

Subtracting from 6212225 its reverse (5222126), we obtain a palindrome (990099).

The spelling of 6212225 in words is "six million, two hundred twelve thousand, two hundred twenty-five".

Divisors: 1 5 17 25 47 85 235 311 425 799 1175 1555 3995 5287 7775 14617 19975 26435 73085 132175 248489 365425 1242445 6212225