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7024225 = 521321613
BaseRepresentation
bin11010110010111001100001
3111012212102111
4122302321201
53244233400
6410315321
7113463535
oct32627141
914185374
107024225
113a6844a
122428b41
1315bc260
14d0bbc5
1593b3ba
hex6b2e61

7024225 has 12 divisors (see below), whose sum is σ = 9380476. Its totient is φ = 5186880.

The previous prime is 7024217. The next prime is 7024231. The reversal of 7024225 is 5224207.

It can be written as a sum of positive squares in 6 ways, for example, as 12321 + 7011904 = 111^2 + 2648^2 .

It is not a de Polignac number, because 7024225 - 23 = 7024217 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7024196 and 7024205.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10482 + ... + 11131.

Almost surely, 27024225 is an apocalyptic number.

It is an amenable number.

7024225 is a deficient number, since it is larger than the sum of its proper divisors (2356251).

7024225 is a wasteful number, since it uses less digits than its factorization.

7024225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21636 (or 21631 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 7024225 is about 2650.3254517134. The cubic root of 7024225 is about 191.5135344823.

The spelling of 7024225 in words is "seven million, twenty-four thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 21613 108065 280969 540325 1404845 7024225