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2020111112 = 23534764413
BaseRepresentation
bin111100001101000…
…0111001100001000
312012210012021111002
41320122013030020
513114122023422
6532241554132
7101026442525
oct17032071410
95183167432
102020111112
11947333418
12484645948
13262699226
1415241214c
15bc536692
hex78687308

2020111112 has 16 divisors (see below), whose sum is σ = 3859175340. Its totient is φ = 990997696.

The previous prime is 2020111111. The next prime is 2020111117. The reversal of 2020111112 is 2111110202.

It can be written as a sum of positive squares in 2 ways, for example, as 2010087556 + 10023556 = 44834^2 + 3166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2020111093 and 2020111102.

It is not an unprimeable number, because it can be changed into a prime (2020111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2381783 + ... + 2382630.

Almost surely, 22020111112 is an apocalyptic number.

It is an amenable number.

2020111112 is a deficient number, since it is larger than the sum of its proper divisors (1839064228).

2020111112 is a wasteful number, since it uses less digits than its factorization.

2020111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764472 (or 4764468 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2020111112 is about 44945.6461962669. The cubic root of 2020111112 is about 1264.1300422340.

Adding to 2020111112 its reverse (2111110202), we get a palindrome (4131221314).

It can be divided in two parts, 20201 and 11112, that added together give a palindrome (31313).

The spelling of 2020111112 in words is "two billion, twenty million, one hundred eleven thousand, one hundred twelve".

Divisors: 1 2 4 8 53 106 212 424 4764413 9528826 19057652 38115304 252513889 505027778 1010055556 2020111112