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20000330213 = 53377364721
BaseRepresentation
bin10010101000000111…
…001101000111100101
31220121212011001012212
4102220013031013211
5311430041031323
613104340253205
71305425000423
oct225007150745
956555131185
1020000330213
118533735126
123a620a1205
131b69792026
14d7a370113
157c0cd3b78
hex4a81cd1e5

20000330213 has 4 divisors (see below), whose sum is σ = 20377694988. Its totient is φ = 19622965440.

The previous prime is 20000330209. The next prime is 20000330299. The reversal of 20000330213 is 31203300002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13806955009 + 6193375204 = 117503^2 + 78698^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000330213 - 22 = 20000330209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000330813) 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, 188682308 + ... + 188682413.

It is an arithmetic number, because the mean of its divisors is an integer number (5094423747).

Almost surely, 220000330213 is an apocalyptic number.

It is an amenable number.

20000330213 is a deficient number, since it is larger than the sum of its proper divisors (377364775).

20000330213 is an equidigital number, since it uses as much as digits as its factorization.

20000330213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377364774.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20000330213 its reverse (31203300002), we get a palindrome (51203630215).

The spelling of 20000330213 in words is "twenty billion, three hundred thirty thousand, two hundred thirteen".

Divisors: 1 53 377364721 20000330213