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4280425 = 521311307
BaseRepresentation
bin10000010101000001101001
322001110122021
4100111001221
52043433200
6231424441
751245242
oct20250151
98043567
104280425
112463a46
121525121
13b6b3c6
147d5cc9
1559841a
hex415069

4280425 has 12 divisors (see below), whose sum is σ = 5352336. Its totient is φ = 3395600.

The previous prime is 4280417. The next prime is 4280459. The reversal of 4280425 is 5240824.

It is a happy number.

It is not a de Polignac number, because 4280425 - 23 = 4280417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4280425.

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, 2622 + ... + 3928.

It is an arithmetic number, because the mean of its divisors is an integer number (446028).

Almost surely, 24280425 is an apocalyptic number.

It is an amenable number.

4280425 is a deficient number, since it is larger than the sum of its proper divisors (1071911).

4280425 is a wasteful number, since it uses less digits than its factorization.

4280425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4280425 is about 2068.9187997599. The cubic root of 4280425 is about 162.3662015009.

The spelling of 4280425 in words is "four million, two hundred eighty thousand, four hundred twenty-five".

Divisors: 1 5 25 131 655 1307 3275 6535 32675 171217 856085 4280425