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4240725 = 35256543
BaseRepresentation
bin10000001011010101010101
321222110011220
4100023111111
52041200400
6230520553
751021426
oct20132525
97873156
104240725
112437135
121506159
13b56308
147c564d
1558b7a0
hex40b555

4240725 has 12 divisors (see below), whose sum is σ = 7011456. Its totient is φ = 2261680.

The previous prime is 4240721. The next prime is 4240729. The reversal of 4240725 is 5270424.

It is an interprime number because it is at equal distance from previous prime (4240721) and next prime (4240729).

It is not a de Polignac number, because 4240725 - 22 = 4240721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4240695 and 4240704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28197 + ... + 28346.

It is an arithmetic number, because the mean of its divisors is an integer number (584288).

Almost surely, 24240725 is an apocalyptic number.

It is an amenable number.

4240725 is a deficient number, since it is larger than the sum of its proper divisors (2770731).

4240725 is a wasteful number, since it uses less digits than its factorization.

4240725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56556 (or 56551 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 4240725 is about 2059.3020662351. The cubic root of 4240725 is about 161.8626713031.

The spelling of 4240725 in words is "four million, two hundred forty thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 56543 169629 282715 848145 1413575 4240725