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2228260 = 225432591
BaseRepresentation
bin1000100000000000100100
311012012121011
420200000210
51032301020
6115432004
724640246
oct10400044
94165534
102228260
111292141
128b5604
136002c8
14420096
152e035a
hex220024

2228260 has 24 divisors (see below), whose sum is σ = 4790016. Its totient is φ = 870240.

The previous prime is 2228243. The next prime is 2228299. The reversal of 2228260 is 628222.

It is a d-powerful number, because it can be written as 215 + 216 + 220 + 85 + 220 + 62 + 0 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436 + ... + 2155.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

22228260 is an apocalyptic number.

2228260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2228260 is an abundant number, since it is smaller than the sum of its proper divisors (2561756).

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

2228260 is a wasteful number, since it uses less digits than its factorization.

2228260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 2641 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2228260 is about 1492.7357435260. The cubic root of 2228260 is about 130.6136666678.

It can be divided in two parts, 22 and 28260, that added together give a palindrome (28282).

The spelling of 2228260 in words is "two million, two hundred twenty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 2591 5182 10364 12955 25910 51820 111413 222826 445652 557065 1114130 2228260