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6402260 = 225320113
BaseRepresentation
bin11000011011000011010100
3110001021020202
4120123003110
53114333020
6345120032
7105263324
oct30330324
913037222
106402260
113683127
122189018
131432127
14bc9284
15866e75
hex61b0d4

6402260 has 12 divisors (see below), whose sum is σ = 13444788. Its totient is φ = 2560896.

The previous prime is 6402247. The next prime is 6402269. The reversal of 6402260 is 622046.

It can be written as a sum of positive squares in 2 ways, for example, as 1882384 + 4519876 = 1372^2 + 2126^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 320113 = 6402260 / (6 + 4 + 0 + 2 + 2 + 6 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160037 + ... + 160076.

It is an arithmetic number, because the mean of its divisors is an integer number (1120399).

Almost surely, 26402260 is an apocalyptic number.

It is an amenable number.

6402260 is an abundant number, since it is smaller than the sum of its proper divisors (7042528).

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

6402260 is a wasteful number, since it uses less digits than its factorization.

6402260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320122 (or 320120 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 6402260 is about 2530.2687604284. The cubic root of 6402260 is about 185.6854049200.

The spelling of 6402260 in words is "six million, four hundred two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 320113 640226 1280452 1600565 3201130 6402260