Base | Representation |
---|---|
bin | 1011001001010010… |
… | …0110000010000000 |
3 | 21201111111022000011 |
4 | 2302110212002000 |
5 | 22111341234404 |
6 | 1212511234304 |
7 | 134065253050 |
oct | 26224460200 |
9 | 7644438004 |
10 | 2991743104 |
11 | 12a5840969 |
12 | 6b5b18994 |
13 | 388a831bc |
14 | 205497560 |
15 | 1279b2604 |
hex | b2526080 |
2991743104 has 64 divisors (see below), whose sum is σ = 6977779200. Its totient is φ = 1250887680.
The previous prime is 2991743093. The next prime is 2991743141. The reversal of 2991743104 is 4013471992.
It is a tau number, because it is divible by the number of its divisors (64).
It is a super-3 number, since 3×29917431043 (a number of 29 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3984 + ... + 77455.
It is an arithmetic number, because the mean of its divisors is an integer number (109027800).
Almost surely, 22991743104 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 2991743104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3488889600).
2991743104 is an abundant number, since it is smaller than the sum of its proper divisors (3986036096).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2991743104 is an equidigital number, since it uses as much as digits as its factorization.
2991743104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 81501 (or 81489 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 40.
The square root of 2991743104 is about 54696.8290122928. The cubic root of 2991743104 is about 1440.9251873410.
The spelling of 2991743104 in words is "two billion, nine hundred ninety-one million, seven hundred forty-three thousand, one hundred four".
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