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200001212 = 22311612913
BaseRepresentation
bin10111110101111…
…00011010111100
3111221100010002022
423322330122330
5402200014322
631502415312
74645660625
oct1372743274
9457303068
10200001212
11a2993964
1256b91538
1332587a18
141c7c2a4c
1512859942
hexbebc6bc

200001212 has 12 divisors (see below), whose sum is σ = 361292736. Its totient is φ = 96774720.

The previous prime is 200001211. The next prime is 200001223. The reversal of 200001212 is 212100002.

It is a self number, because there is not a number n which added to its sum of digits gives 200001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200001211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806333 + ... + 806580.

It is an arithmetic number, because the mean of its divisors is an integer number (30107728).

Almost surely, 2200001212 is an apocalyptic number.

It is an amenable number.

200001212 is a deficient number, since it is larger than the sum of its proper divisors (161291524).

200001212 is a wasteful number, since it uses less digits than its factorization.

200001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612948 (or 1612946 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 200001212 is about 14142.1784743370. The cubic root of 200001212 is about 584.8047289434.

Adding to 200001212 its reverse (212100002), we get a palindrome (412101214).

It can be divided in two parts, 20000 and 1212, that added together give a palindrome (21212).

The spelling of 200001212 in words is "two hundred million, one thousand, two hundred twelve".

Divisors: 1 2 4 31 62 124 1612913 3225826 6451652 50000303 100000606 200001212