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4288660 = 225214433
BaseRepresentation
bin10000010111000010010100
322001212221021
4100113002110
52044214120
6231530524
751311245
oct20270224
98055837
104288660
11246a152
121529a44
13b7208c
147d8ccc
1559aaaa
hex417094

4288660 has 12 divisors (see below), whose sum is σ = 9006228. Its totient is φ = 1715456.

The previous prime is 4288637. The next prime is 4288681. The reversal of 4288660 is 668824.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 917764 = 1836^2 + 958^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107197 + ... + 107236.

It is an arithmetic number, because the mean of its divisors is an integer number (750519).

Almost surely, 24288660 is an apocalyptic number.

It is an amenable number.

4288660 is an abundant number, since it is smaller than the sum of its proper divisors (4717568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4288660 is a wasteful number, since it uses less digits than its factorization.

4288660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214442 (or 214440 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 4288660 is about 2070.9080134086. The cubic root of 4288660 is about 162.4702588568.

The spelling of 4288660 in words is "four million, two hundred eighty-eight thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 214433 428866 857732 1072165 2144330 4288660