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2102102212 = 227611230739
BaseRepresentation
bin111110101001011…
…1000100011000100
312102111110212010111
41331102320203010
513301114232322
6544331202404
7103043400610
oct17522704304
95374425114
102102102212
11989644561
124a7ba6404
13276675982
1415d276340
15c4830177
hex7d4b88c4

2102102212 has 24 divisors (see below), whose sum is σ = 4273129280. Its totient is φ = 886131360.

The previous prime is 2102102203. The next prime is 2102102243. The reversal of 2102102212 is 2122012012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102102192 and 2102102201.

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, 613662 + ... + 617077.

Almost surely, 22102102212 is an apocalyptic number.

It is an amenable number.

2102102212 is an abundant number, since it is smaller than the sum of its proper divisors (2171027068).

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

2102102212 is a wasteful number, since it uses less digits than its factorization.

2102102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230811 (or 1230809 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102102212 is about 45848.6882255098. The cubic root of 2102102212 is about 1281.0063318275.

Adding to 2102102212 its reverse (2122012012), we get a palindrome (4224114224).

The spelling of 2102102212 in words is "two billion, one hundred two million, one hundred two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 61 122 244 427 854 1708 1230739 2461478 4922956 8615173 17230346 34460692 75075079 150150158 300300316 525525553 1051051106 2102102212