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212003244 = 22344315217
BaseRepresentation
bin11001010001011…
…10100110101100
3112202220212210000
430220232212230
5413233100434
633011544300
75152666155
oct1450564654
9482825700
10212003244
11a97411a2
125abbb090
1334bca90b
142022892c
151392ab99
hexca2e9ac

212003244 has 60 divisors (see below), whose sum is σ = 567144424. Its totient is φ = 69019776.

The previous prime is 212003219. The next prime is 212003261. The reversal of 212003244 is 442300212.

212003244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6324 + ... + 21540.

Almost surely, 2212003244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212003244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283572212).

212003244 is an abundant number, since it is smaller than the sum of its proper divisors (355141180).

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

212003244 is a wasteful number, since it uses less digits than its factorization.

212003244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276 (or 15265 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 212003244 is about 14560.3311775522. The cubic root of 212003244 is about 596.2762371272.

Adding to 212003244 its reverse (442300212), we get a palindrome (654303456).

The spelling of 212003244 in words is "two hundred twelve million, three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 81 86 108 129 162 172 258 324 387 516 774 1161 1548 2322 3483 4644 6966 13932 15217 30434 45651 60868 91302 136953 182604 273906 410859 547812 654331 821718 1232577 1308662 1643436 1962993 2465154 2617324 3925986 4930308 5888979 7851972 11777958 17666937 23555916 35333874 53000811 70667748 106001622 212003244