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2206220 = 225110311
BaseRepresentation
bin1000011010101000001100
311011002100212
420122220030
51031044340
6115141552
724516062
oct10325014
94132325
102206220
111277625
128a48b8
135c3273
14416032
152d8a65
hex21aa0c

2206220 has 12 divisors (see below), whose sum is σ = 4633104. Its totient is φ = 882480.

The previous prime is 2206219. The next prime is 2206247. The reversal of 2206220 is 226022.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2206195 and 2206204.

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, 55136 + ... + 55175.

It is an arithmetic number, because the mean of its divisors is an integer number (386092).

22206220 is an apocalyptic number.

2206220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2206220 is an abundant number, since it is smaller than the sum of its proper divisors (2426884).

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

2206220 is a wasteful number, since it uses less digits than its factorization.

2206220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110320 (or 110318 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2206220 is about 1485.3349790535. The cubic root of 2206220 is about 130.1816002434.

The spelling of 2206220 in words is "two million, two hundred six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 110311 220622 441244 551555 1103110 2206220