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2011308680808 = 233572941124309
BaseRepresentation
bin11101010001001011010…
…101101110011001101000
321010021112120010100200000
4131101023111232121220
5230423130010241213
64135552113143000
7265212050463660
oct35211325563150
97107476110600
102011308680808
11705a9a352089
1228597b25aa60
13117886408a8b
146d4c27531a0
15374babe2c73
hex1d44b56e668

2011308680808 has 384 divisors, whose sum is σ = 6841624608000. Its totient is φ = 541306644480.

The previous prime is 2011308680791. The next prime is 2011308680929. The reversal of 2011308680808 is 8080868031102.

2011308680808 is a `hidden beast` number, since 201 + 1 + 308 + 68 + 0 + 80 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16117758 + ... + 16242066.

It is an arithmetic number, because the mean of its divisors is an integer number (17816730750).

Almost surely, 22011308680808 is an apocalyptic number.

2011308680808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011308680808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3420812304000).

2011308680808 is an abundant number, since it is smaller than the sum of its proper divisors (4830315927192).

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

2011308680808 is a wasteful number, since it uses less digits than its factorization.

2011308680808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124407 (or 124391 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The spelling of 2011308680808 in words is "two trillion, eleven billion, three hundred eight million, six hundred eighty thousand, eight hundred eight".