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20000330221 = 171961920527
BaseRepresentation
bin10010101000000111…
…001101000111101101
31220121212011001020011
4102220013031013231
5311430041031341
613104340253221
71305425000434
oct225007150755
956555131204
1020000330221
118533735133
123a620a1211
131b69792031
14d7a37011b
157c0cd3b81
hex4a81cd1ed

20000330221 has 8 divisors (see below), whose sum is σ = 22291390080. Its totient is φ = 17833111488.

The previous prime is 20000330209. The next prime is 20000330299. The reversal of 20000330221 is 12203300002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000330221 - 27 = 20000330093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000330521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30959941 + ... + 30960586.

It is an arithmetic number, because the mean of its divisors is an integer number (2786423760).

Almost surely, 220000330221 is an apocalyptic number.

It is an amenable number.

20000330221 is a deficient number, since it is larger than the sum of its proper divisors (2291059859).

20000330221 is a wasteful number, since it uses less digits than its factorization.

20000330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61920563.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20000330221 its reverse (12203300002), we get a palindrome (32203630223).

The spelling of 20000330221 in words is "twenty billion, three hundred thirty thousand, two hundred twenty-one".

Divisors: 1 17 19 323 61920527 1052648959 1176490013 20000330221