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20000110212 = 2232555558617
BaseRepresentation
bin10010101000000110…
…010111011010000100
31220121211201212102200
4102220012113122010
5311430012011322
613104331434500
71305423063135
oct225006273204
956554655380
1020000110212
1185335a4905
123a61bb5a30
131b69715b54
14d7a313c8c
157c0c8d8ac
hex4a8197684

20000110212 has 18 divisors (see below), whose sum is σ = 50555834238. Its totient is φ = 6666703392.

The previous prime is 20000110187. The next prime is 20000110243. The reversal of 20000110212 is 21201100002.

It can be written as a sum of positive squares in only one way, i.e., 14673445956 + 5326664256 = 121134^2 + 72984^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000110194 and 20000110203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277779273 + ... + 277779344.

Almost surely, 220000110212 is an apocalyptic number.

It is an amenable number.

20000110212 is an abundant number, since it is smaller than the sum of its proper divisors (30555724026).

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

20000110212 is a wasteful number, since it uses less digits than its factorization.

20000110212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555558627 (or 555558622 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000110212 its reverse (21201100002), we get a palindrome (41201210214).

The spelling of 20000110212 in words is "twenty billion, one hundred ten thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 555558617 1111117234 1666675851 2222234468 3333351702 5000027553 6666703404 10000055106 20000110212