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7240325 = 521092657
BaseRepresentation
bin11011100111101010000101
3111121211212012
4123213222011
53323142300
6415104005
7115353551
oct33475205
914554765
107240325
1140a5844
122512005
131666721
14d66861
15980435
hex6e7a85

7240325 has 12 divisors (see below), whose sum is σ = 9063780. Its totient is φ = 5736960.

The previous prime is 7240319. The next prime is 7240333. The reversal of 7240325 is 5230427.

It can be written as a sum of positive squares in 6 ways, for example, as 9604 + 7230721 = 98^2 + 2689^2 .

It is not a de Polignac number, because 7240325 - 24 = 7240309 is a prime.

It is a super-2 number, since 2×72403252 = 104844612211250, which contains 22 as substring.

It is a d-powerful number, because it can be written as 78 + 214 + 44 + 0 + 39 + 220 + 58 .

It is a self number, because there is not a number n which added to its sum of digits gives 7240325.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1397 + ... + 4053.

It is an arithmetic number, because the mean of its divisors is an integer number (755315).

Almost surely, 27240325 is an apocalyptic number.

It is an amenable number.

7240325 is a deficient number, since it is larger than the sum of its proper divisors (1823455).

7240325 is a wasteful number, since it uses less digits than its factorization.

7240325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776 (or 2771 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7240325 is about 2690.7852013864. The cubic root of 7240325 is about 193.4577000705.

The spelling of 7240325 in words is "seven million, two hundred forty thousand, three hundred twenty-five".

Divisors: 1 5 25 109 545 2657 2725 13285 66425 289613 1448065 7240325