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20200330221 = 3234122931181
BaseRepresentation
bin10010110100000010…
…001001001111101101
31221010210111002122120
4102310002021033231
5312332241031341
613140243103153
71313403655011
oct226402111755
957123432576
1020200330221
118626618095
123ab9071ab9
131b9c049326
14d98b52541
157d363d066
hex4b40893ed

20200330221 has 32 divisors (see below), whose sum is σ = 28916939520. Its totient is φ = 12511910400.

The previous prime is 20200330211. The next prime is 20200330243. The reversal of 20200330221 is 12203300202.

It is not a de Polignac number, because 20200330221 - 225 = 20166775789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20200330221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200330201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632251 + ... + 663431.

It is an arithmetic number, because the mean of its divisors is an integer number (903654360).

Almost surely, 220200330221 is an apocalyptic number.

It is an amenable number.

20200330221 is a deficient number, since it is larger than the sum of its proper divisors (8716609299).

20200330221 is a wasteful number, since it uses less digits than its factorization.

20200330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31477.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20200330221 its reverse (12203300202), we get a palindrome (32403630423).

The spelling of 20200330221 in words is "twenty billion, two hundred million, three hundred thirty thousand, two hundred twenty-one".

Divisors: 1 3 23 41 69 123 229 687 943 2829 5267 9389 15801 28167 31181 93543 215947 647841 717163 1278421 2151489 3835263 7140449 21421347 29403683 88211049 164230327 292758409 492690981 878275227 6733443407 20200330221