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20011020112 = 2410115182007
BaseRepresentation
bin10010101000101111…
…111110111101010000
31220122121021011000001
4102220233332331100
5311440310120422
613105401335344
71305614602336
oct225057767520
956577234001
1020011020112
118539776656
123a65797554
131b6ba65905
14d7b953b56
157c1be6227
hex4a8bfef50

20011020112 has 40 divisors (see below), whose sum is σ = 39415012992. Its totient is φ = 9840720000.

The previous prime is 20011020109. The next prime is 20011020137. The reversal of 20011020112 is 21102011002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203013 + ... + 285019.

Almost surely, 220011020112 is an apocalyptic number.

It is an amenable number.

20011020112 is a deficient number, since it is larger than the sum of its proper divisors (19403992880).

20011020112 is a wasteful number, since it uses less digits than its factorization.

20011020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82267 (or 82261 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011020112 its reverse (21102011002), we get a palindrome (41113031114).

The spelling of 20011020112 in words is "twenty billion, eleven million, twenty thousand, one hundred twelve".

Divisors: 1 2 4 8 16 101 151 202 302 404 604 808 1208 1616 2416 15251 30502 61004 82007 122008 164014 244016 328028 656056 1312112 8282707 12383057 16565414 24766114 33130828 49532228 66261656 99064456 132523312 198128912 1250688757 2501377514 5002755028 10005510056 20011020112