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211202012 = 2272928969
BaseRepresentation
bin11001001011010…
…10111111011100
3112201102011200202
430211222333130
5413031431022
632542443032
75143121210
oct1445527734
9481364622
10211202012
11a924421a
125a893478
13349aa008
142009a940
151381d592
hexc96afdc

211202012 has 36 divisors (see below), whose sum is σ = 437520720. Its totient is φ = 87384192.

The previous prime is 211202003. The next prime is 211202027. The reversal of 211202012 is 210202112.

It is a happy number.

211202012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211201984 and 211202002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19064 + ... + 28032.

Almost surely, 2211202012 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 211202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218760360).

211202012 is an abundant number, since it is smaller than the sum of its proper divisors (226318708).

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

211202012 is a wasteful number, since it uses less digits than its factorization.

211202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038 (or 9007 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211202012 is about 14532.7909225998. The cubic root of 211202012 is about 595.5241122593.

Adding to 211202012 its reverse (210202112), we get a palindrome (421404124).

It can be divided in two parts, 21120 and 2012, that added together give a palindrome (23132).

The spelling of 211202012 in words is "two hundred eleven million, two hundred two thousand, twelve".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 841 1682 3364 5887 8969 11774 17938 23548 35876 62783 125566 251132 260101 520202 1040404 1820707 3641414 7282828 7542929 15085858 30171716 52800503 105601006 211202012