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20200200210 = 2325415474309
BaseRepresentation
bin10010110100000001…
…101001100000010010
31221010210020111022100
4102310001221200102
5312332222401320
613140240221230
71313402603661
oct226401514022
957123214270
1020200200210
118626539443
123ab900a816
131b9c0020b8
14d98b1add8
157d3614790
hex4b4069812

20200200210 has 48 divisors (see below), whose sum is σ = 53801518680. Its totient is φ = 5255335680.

The previous prime is 20200200197. The next prime is 20200200217. The reversal of 20200200210 is 1200200202.

It can be written as a sum of positive squares in 4 ways, for example, as 4507376769 + 15692823441 = 67137^2 + 125271^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20200200192 and 20200200201.

It is not an unprimeable number, because it can be changed into a prime (20200200217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2733465 + ... + 2740844.

Almost surely, 220200200210 is an apocalyptic number.

20200200210 is an abundant number, since it is smaller than the sum of its proper divisors (33601318470).

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

20200200210 is a wasteful number, since it uses less digits than its factorization.

20200200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5474363 (or 5474360 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200200210 its reverse (1200200202), we get a palindrome (21400400412).

The spelling of 20200200210 in words is "twenty billion, two hundred million, two hundred thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 41 45 82 90 123 205 246 369 410 615 738 1230 1845 3690 5474309 10948618 16422927 27371545 32845854 49268781 54743090 82114635 98537562 164229270 224446669 246343905 448893338 492687810 673340007 1122233345 1346680014 2020020021 2244466690 3366700035 4040040042 6733400070 10100100105 20200200210