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20211013230 = 235673700441
BaseRepresentation
bin10010110100101010…
…111001011001101110
31221011112120211222120
4102310222321121232
5312343004410410
613141304053410
71313563530552
oct226452713156
957145524876
1020211013230
118631654421
123b00764266
131ba1319a35
14d9a333862
157d454d570
hex4b4ab966e

20211013230 has 16 divisors (see below), whose sum is σ = 48506431824. Its totient is φ = 5389603520.

The previous prime is 20211013213. The next prime is 20211013231. The reversal of 20211013230 is 3231011202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211013231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336850191 + ... + 336850250.

It is an arithmetic number, because the mean of its divisors is an integer number (3031651989).

Almost surely, 220211013230 is an apocalyptic number.

20211013230 is an abundant number, since it is smaller than the sum of its proper divisors (28295418594).

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

20211013230 is a wasteful number, since it uses less digits than its factorization.

20211013230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673700451.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20211013230 its reverse (3231011202), we get a palindrome (23442024432).

The spelling of 20211013230 in words is "twenty billion, two hundred eleven million, thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 673700441 1347400882 2021101323 3368502205 4042202646 6737004410 10105506615 20211013230