Base | Representation |
---|---|
bin | 110101110011001… |
… | …1010000001000000 |
3 | 11122210212012012201 |
4 | 1223212122001000 |
5 | 12144114331034 |
6 | 455044202544 |
7 | 62510126434 |
oct | 15346320100 |
9 | 4583765181 |
10 | 1805230144 |
11 | 847007143 |
12 | 424699454 |
13 | 22a001823 |
14 | 131a789c4 |
15 | a873d014 |
hex | 6b99a040 |
1805230144 has 63 divisors (see below), whose sum is σ = 3692770237. Its totient is φ = 875592704.
The previous prime is 1805230081. The next prime is 1805230243. The reversal of 1805230144 is 4410325081.
The square root of 1805230144 is 42488.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 31809600 + 1773420544 = 5640^2 + 42112^2 .
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15975432 + ... + 15975544.
Almost surely, 21805230144 is an apocalyptic number.
1805230144 is the 42488-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1805230144
1805230144 is an abundant number, since it is smaller than the sum of its proper divisors (1887540093).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1805230144 is an frugal number, since it uses more digits than its factorization.
1805230144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 332 (or 162 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 28.
The cubic root of 1805230144 is about 1217.6174373267.
The spelling of 1805230144 in words is "one billion, eight hundred five million, two hundred thirty thousand, one hundred forty-four".
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