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2021104124 = 221322989799
BaseRepresentation
bin111100001110111…
…1001100111111100
312012212001201122022
41320131321213330
513114400312444
6532315135312
7101041046564
oct17035714774
95185051568
102021104124
11947951496
12484a44538
13262956200
141525cdda4
15bc6809ee
hex787799fc

2021104124 has 18 divisors (see below), whose sum is σ = 3829933800. Its totient is φ = 932816976.

The previous prime is 2021104121. The next prime is 2021104147. The reversal of 2021104124 is 4214011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021104121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1494224 + ... + 1495575.

It is an arithmetic number, because the mean of its divisors is an integer number (212774100).

Almost surely, 22021104124 is an apocalyptic number.

It is an amenable number.

2021104124 is a deficient number, since it is larger than the sum of its proper divisors (1808829676).

2021104124 is a wasteful number, since it uses less digits than its factorization.

2021104124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989829 (or 2989814 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2021104124 is about 44956.6916487412. The cubic root of 2021104124 is about 1264.3371415143.

Adding to 2021104124 its reverse (4214011202), we get a palindrome (6235115326).

The spelling of 2021104124 in words is "two billion, twenty-one million, one hundred four thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 169 338 676 2989799 5979598 11959196 38867387 77734774 155469548 505276031 1010552062 2021104124