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4287425 = 52317541
BaseRepresentation
bin10000010110101111000001
322001211020112
4100112233001
52044144200
6231521105
751304532
oct20265701
98054215
104287425
11246922a
121529195
13b7164c
147d8689
1559a535
hex416bc1

4287425 has 12 divisors (see below), whose sum is σ = 5343036. Its totient is φ = 3412800.

The previous prime is 4287419. The next prime is 4287427. The reversal of 4287425 is 5247824.

It can be written as a sum of positive squares in 6 ways, for example, as 868624 + 3418801 = 932^2 + 1849^2 .

It is not a de Polignac number, because 4287425 - 214 = 4271041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4287391 and 4287400.

It is not an unprimeable number, because it can be changed into a prime (4287427) 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, 7655 + ... + 8195.

It is an arithmetic number, because the mean of its divisors is an integer number (445253).

Almost surely, 24287425 is an apocalyptic number.

It is an amenable number.

4287425 is a deficient number, since it is larger than the sum of its proper divisors (1055611).

4287425 is a wasteful number, since it uses less digits than its factorization.

4287425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 863 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 4287425 is about 2070.6098135573. The cubic root of 4287425 is about 162.4546619079.

The spelling of 4287425 in words is "four million, two hundred eighty-seven thousand, four hundred twenty-five".

Divisors: 1 5 25 317 541 1585 2705 7925 13525 171497 857485 4287425