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20221013331 = 3210720997937
BaseRepresentation
bin10010110101010001…
…000010110101010011
31221012020101220112200
4102311101002311103
5312403034411311
613142302254243
71314044530431
oct226521026523
957166356480
1020221013331
118637264672
123b03b87383
131ba340b65c
14d9b7b7d51
157d5376556
hex4b5442d53

20221013331 has 12 divisors (see below), whose sum is σ = 29481104952. Its totient is φ = 13354687296.

The previous prime is 20221013299. The next prime is 20221013357. The reversal of 20221013331 is 13331012202.

It is not a de Polignac number, because 20221013331 - 25 = 20221013299 is a prime.

It is a super-3 number, since 3×202210133313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (20221013381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10498006 + ... + 10499931.

It is an arithmetic number, because the mean of its divisors is an integer number (2456758746).

Almost surely, 220221013331 is an apocalyptic number.

20221013331 is a deficient number, since it is larger than the sum of its proper divisors (9260091621).

20221013331 is a wasteful number, since it uses less digits than its factorization.

20221013331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20998050 (or 20998047 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20221013331 its reverse (13331012202), we get a palindrome (33552025533).

The spelling of 20221013331 in words is "twenty billion, two hundred twenty-one million, thirteen thousand, three hundred thirty-one".

Divisors: 1 3 9 107 321 963 20997937 62993811 188981433 2246779259 6740337777 20221013331