Base | Representation |
---|---|
bin | 1110001100010110010… |
… | …1000110101100100000 |
3 | 212022101010211010221200 |
4 | 3203011211012230200 |
5 | 12443332222210010 |
6 | 304003151321200 |
7 | 23421260234661 |
oct | 3430545065440 |
9 | 768333733850 |
10 | 243833006880 |
11 | 94455415021 |
12 | 3b30b220200 |
13 | 19cbb524638 |
14 | bb31773368 |
15 | 65216e6cc0 |
hex | 38c5946b20 |
243833006880 has 144 divisors (see below), whose sum is σ = 860772701880. Its totient is φ = 62779981824.
The previous prime is 243833006819. The next prime is 243833006881. The reversal of 243833006880 is 88600338342.
243833006880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 219147569424 + 24685437456 = 468132^2 + 157116^2 .
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (243833006881) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2877697 + ... + 2961216.
Almost surely, 2243833006880 is an apocalyptic number.
243833006880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
243833006880 is an abundant number, since it is smaller than the sum of its proper divisors (616939695000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243833006880 is a wasteful number, since it uses less digits than its factorization.
243833006880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5838963 (or 5838952 counting only the distinct ones).
The product of its (nonzero) digits is 663552, while the sum is 45.
The spelling of 243833006880 in words is "two hundred forty-three billion, eight hundred thirty-three million, six thousand, eight hundred eighty".
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