Base | Representation |
---|---|
bin | 11100101010000110… |
… | …100000010001000000 |
3 | 2221102111021211000022 |
4 | 130222012200101000 |
5 | 1001004401303133 |
6 | 22045215513012 |
7 | 2136352124456 |
oct | 345206402100 |
9 | 87374254008 |
10 | 30771119168 |
11 | 120605492a9 |
12 | 5b69228768 |
13 | 2b9507552a |
14 | 16bca169d6 |
15 | c01698998 |
hex | 72a1a0440 |
30771119168 has 56 divisors (see below), whose sum is σ = 62042588640. Its totient is φ = 15139998720.
The previous prime is 30771119167. The next prime is 30771119177. The reversal of 30771119168 is 86191117703.
It is not an unprimeable number, because it can be changed into a prime (30771119167) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189055 + ... + 1214657.
Almost surely, 230771119168 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30771119168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31021294320).
30771119168 is an abundant number, since it is smaller than the sum of its proper divisors (31271469472).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30771119168 is a wasteful number, since it uses less digits than its factorization.
30771119168 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25915 (or 25905 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 44.
The spelling of 30771119168 in words is "thirty billion, seven hundred seventy-one million, one hundred nineteen thousand, one hundred sixty-eight".
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