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20201200210 = 2573110924953
BaseRepresentation
bin10010110100000101…
…011101101001010010
31221010212010022001101
4102310011131221102
5312333001401320
613140313455014
71313414240302
oct226405355122
957125108041
1020201200210
118627061794
123ab941146a
131b9c292309
14d98cdb602
157d3760c0a
hex4b415da52

20201200210 has 32 divisors (see below), whose sum is σ = 36894988080. Its totient is φ = 7962283008.

The previous prime is 20201200207. The next prime is 20201200223. The reversal of 20201200210 is 1200210202.

It can be written as a sum of positive squares in 8 ways, for example, as 5276424321 + 14924775889 = 72639^2 + 122167^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797094 + ... + 822046.

Almost surely, 220201200210 is an apocalyptic number.

20201200210 is a deficient number, since it is larger than the sum of its proper divisors (16693787870).

20201200210 is a wasteful number, since it uses less digits than its factorization.

20201200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26142.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20201200210 its reverse (1200210202), we get a palindrome (21401410412).

The spelling of 20201200210 in words is "twenty billion, two hundred one million, two hundred thousand, two hundred ten".

Divisors: 1 2 5 10 73 146 365 730 1109 2218 5545 11090 24953 49906 80957 124765 161914 249530 404785 809570 1821569 3643138 9107845 18215690 27672877 55345754 138364385 276728770 2020120021 4040240042 10100600105 20201200210