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20112000008 = 23171031435751
BaseRepresentation
bin10010101110110001…
…001100010000001000
31220220122021110101012
4102232301030100020
5312142133000013
613123405543052
71311252115352
oct225661142010
956818243335
1020112000008
118590777311
123a93574a88
131b86960429
14d8b11c0d2
157ca9e11a8
hex4aec4c408

20112000008 has 32 divisors (see below), whose sum is σ = 40315916160. Its totient is φ = 9372576000.

The previous prime is 20112000001. The next prime is 20112000011. The reversal of 20112000008 is 80000021102.

It is a junction number, because it is equal to n+sod(n) for n = 20111999956 and 20112000001.

It is not an unprimeable number, because it can be changed into a prime (20112000001) 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 7 ways as a sum of consecutive naturals, for example, 703868 + ... + 731883.

It is an arithmetic number, because the mean of its divisors is an integer number (1259872380).

Almost surely, 220112000008 is an apocalyptic number.

It is an amenable number.

20112000008 is an abundant number, since it is smaller than the sum of its proper divisors (20203916152).

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

20112000008 is a wasteful number, since it uses less digits than its factorization.

20112000008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435877 (or 1435873 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 20112000008 in words is "twenty billion, one hundred twelve million, eight", and thus it is an aban number.

Divisors: 1 2 4 8 17 34 68 103 136 206 412 824 1751 3502 7004 14008 1435751 2871502 5743004 11486008 24407767 48815534 97631068 147882353 195262136 295764706 591529412 1183058824 2514000001 5028000002 10056000004 20112000008