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6413225 = 527132819
BaseRepresentation
bin11000011101101110101001
3110001211021212
4120131232221
53120210400
6345242505
7105340310
oct30355651
913054255
106413225
113690395
122193435
131437110
14bcd277
1586a335
hex61dba9

6413225 has 24 divisors (see below), whose sum is σ = 9791040. Its totient is φ = 4057920.

The previous prime is 6413219. The next prime is 6413243. The reversal of 6413225 is 5223146.

It is not a de Polignac number, because 6413225 - 28 = 6412969 is a prime.

It is a super-2 number, since 2×64132252 = 82258909801250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6413225.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 866 + ... + 3684.

It is an arithmetic number, because the mean of its divisors is an integer number (407960).

Almost surely, 26413225 is an apocalyptic number.

6413225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6413225 is a deficient number, since it is larger than the sum of its proper divisors (3377815).

6413225 is a wasteful number, since it uses less digits than its factorization.

6413225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849 (or 2844 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 6413225 is about 2532.4345993530. The cubic root of 6413225 is about 185.7913508001.

It can be divided in two parts, 64 and 13225, that multiplied together give a square (846400 = 9202).

The spelling of 6413225 in words is "six million, four hundred thirteen thousand, two hundred twenty-five".

Divisors: 1 5 7 13 25 35 65 91 175 325 455 2275 2819 14095 19733 36647 70475 98665 183235 256529 493325 916175 1282645 6413225