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2589220 = 225129461
BaseRepresentation
bin1001111000001000100100
311212112202001
421320020210
51130323340
6131255044
731002514
oct11701044
94775661
102589220
111509357
12a4a484
136c86aa
144b5844
1536229a
hex278224

2589220 has 12 divisors (see below), whose sum is σ = 5437404. Its totient is φ = 1035680.

The previous prime is 2589217. The next prime is 2589227. The reversal of 2589220 is 229852.

It can be written as a sum of positive squares in 2 ways, for example, as 589824 + 1999396 = 768^2 + 1414^2 .

It is not an unprimeable number, because it can be changed into a prime (2589227) 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, 64711 + ... + 64750.

It is an arithmetic number, because the mean of its divisors is an integer number (453117).

22589220 is an apocalyptic number.

2589220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2589220 is an abundant number, since it is smaller than the sum of its proper divisors (2848184).

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

2589220 is a wasteful number, since it uses less digits than its factorization.

2589220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129470 (or 129468 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2589220 is about 1609.1053414864. The cubic root of 2589220 is about 137.3165818845.

Adding to 2589220 its product of nonzero digits (2880), we get a square (2592100 = 16102).

It can be divided in two parts, 2589 and 220, that added together give a square (2809 = 532).

The spelling of 2589220 in words is "two million, five hundred eighty-nine thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 129461 258922 517844 647305 1294610 2589220