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20102022112 = 257129330197
BaseRepresentation
bin10010101110001011…
…001000001111100000
31220212221111112021111
4102232023020033200
5312132104201422
613122412033104
71311101240314
oct225613101740
956787445244
1020102022112
118586081817
123a90162794
131b84878953
14d89a81b44
157c9bbea77
hex4ae2c83e0

20102022112 has 48 divisors (see below), whose sum is σ = 40271569632. Its totient is φ = 9875299840.

The previous prime is 20102022053. The next prime is 20102022119. The reversal of 20102022112 is 21122020102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20102022092 and 20102022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102022119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650598 + ... + 680794.

It is an arithmetic number, because the mean of its divisors is an integer number (838991034).

Almost surely, 220102022112 is an apocalyptic number.

It is an amenable number.

20102022112 is an abundant number, since it is smaller than the sum of its proper divisors (20169547520).

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

20102022112 is a wasteful number, since it uses less digits than its factorization.

20102022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30571 (or 30563 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20102022112 its reverse (21122020102), we get a palindrome (41224042214).

The spelling of 20102022112 in words is "twenty billion, one hundred two million, twenty-two thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 71 142 284 293 568 586 1136 1172 2272 2344 4688 9376 20803 30197 41606 60394 83212 120788 166424 241576 332848 483152 665696 966304 2143987 4287974 8575948 8847721 17151896 17695442 34303792 35390884 68607584 70781768 141563536 283127072 628188191 1256376382 2512752764 5025505528 10051011056 20102022112