Search a number
-
+
4280660 = 225214033
BaseRepresentation
bin10000010101000101010100
322001110221222
4100111011110
52043440120
6231425512
751246026
oct20250524
98043858
104280660
11246413a
121525298
13b6b547
147d6016
15598525
hex415154

4280660 has 12 divisors (see below), whose sum is σ = 8989428. Its totient is φ = 1712256.

The previous prime is 4280659. The next prime is 4280741. The reversal of 4280660 is 660824.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 1444804 = 1684^2 + 1202^2 .

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, 106997 + ... + 107036.

It is an arithmetic number, because the mean of its divisors is an integer number (749119).

Almost surely, 24280660 is an apocalyptic number.

It is an amenable number.

4280660 is an abundant number, since it is smaller than the sum of its proper divisors (4708768).

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

4280660 is a wasteful number, since it uses less digits than its factorization.

4280660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214042 (or 214040 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 4280660 is about 2068.9755919295. The cubic root of 4280660 is about 162.3691728071.

The spelling of 4280660 in words is "four million, two hundred eighty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 214033 428066 856132 1070165 2140330 4280660