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10020112220 = 225661757951
BaseRepresentation
bin10010101010011111…
…01100011101011100
3221212022121102220102
421111033230131130
5131010122042340
64334141440232
7503210356106
oct112517543534
927768542812
1010020112220
114282101688
121b37870078
13c38c0c9b1
146b0aba576
153d9a32215
hex2553ec75c

10020112220 has 24 divisors (see below), whose sum is σ = 21074097408. Its totient is φ = 4001976000.

The previous prime is 10020112187. The next prime is 10020112309. The reversal of 10020112220 is 2221102001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 365756 + ... + 392195.

It is an arithmetic number, because the mean of its divisors is an integer number (878087392).

Almost surely, 210020112220 is an apocalyptic number.

10020112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020112220 is an abundant number, since it is smaller than the sum of its proper divisors (11053985188).

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

10020112220 is a wasteful number, since it uses less digits than its factorization.

10020112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758621 (or 758619 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10020112220 its reverse (2221102001), we get a palindrome (12241214221).

The spelling of 10020112220 in words is "ten billion, twenty million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 6610 13220 757951 1515902 3031804 3789755 7579510 15159020 501005611 1002011222 2004022444 2505028055 5010056110 10020112220