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4280125 = 5397353
BaseRepresentation
bin10000010100111100111101
322001110020011
4100110330331
52043431000
6231423221
751244333
oct20247475
98043204
104280125
1124637a3
121524b11
13b6b225
147d5b53
155982ba
hex414f3d

4280125 has 16 divisors (see below), whose sum is σ = 5411952. Its totient is φ = 3379200.

The previous prime is 4280117. The next prime is 4280131. The reversal of 4280125 is 5210824.

It can be written as a sum of positive squares in 8 ways, for example, as 1684804 + 2595321 = 1298^2 + 1611^2 .

It is not a de Polignac number, because 4280125 - 23 = 4280117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4280096 and 4280105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11949 + ... + 12301.

It is an arithmetic number, because the mean of its divisors is an integer number (338247).

Almost surely, 24280125 is an apocalyptic number.

It is an amenable number.

4280125 is a deficient number, since it is larger than the sum of its proper divisors (1131827).

4280125 is an equidigital number, since it uses as much as digits as its factorization.

4280125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4280125 is about 2068.8462968524. The cubic root of 4280125 is about 162.3624081861.

Adding to 4280125 its reverse (5210824), we get a palindrome (9490949).

The spelling of 4280125 in words is "four million, two hundred eighty thousand, one hundred twenty-five".

Divisors: 1 5 25 97 125 353 485 1765 2425 8825 12125 34241 44125 171205 856025 4280125