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2212230 = 235371993
BaseRepresentation
bin1000011100000110000110
311011101121110
420130012012
51031242410
6115225450
724542436
oct10340606
94141543
102212230
111281099
128a8286
135c5c17
144182c6
152da720
hex21c186

2212230 has 32 divisors (see below), whose sum is σ = 5455584. Its totient is φ = 573696.

The previous prime is 2212229. The next prime is 2212241. The reversal of 2212230 is 322122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (170487).

22212230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2727792).

2212230 is an abundant number, since it is smaller than the sum of its proper divisors (3243354).

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

2212230 is a wasteful number, since it uses less digits than its factorization.

2212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2212230 is about 1487.3567157881. The cubic root of 2212230 is about 130.2997030087.

Adding to 2212230 its reverse (322122), we get a palindrome (2534352).

It can be divided in two parts, 2212 and 230, that added together give a palindrome (2442).

The spelling of 2212230 in words is "two million, two hundred twelve thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 1993 3986 5979 9965 11958 19930 29895 59790 73741 147482 221223 368705 442446 737410 1106115 2212230