| Base | Representation |
|---|---|
| bin | 110110000000111… |
| … | …1000000001100000 |
| 3 | 11200022102000212000 |
| 4 | 1230001320001200 |
| 5 | 12202440242234 |
| 6 | 455502404000 |
| 7 | 62625260142 |
| oct | 15401700140 |
| 9 | 4608360760 |
| 10 | 1812430944 |
| 11 | 850085215 |
| 12 | 426b90600 |
| 13 | 22b65325c |
| 14 | 1329d0c92 |
| 15 | a91b1899 |
| hex | 6c078060 |
1812430944 has 96 divisors (see below), whose sum is σ = 5306041440. Its totient is φ = 601883136.
The previous prime is 1812430943. The next prime is 1812430993. The reversal of 1812430944 is 4490342181.
It is a happy number.
1812430944 is a `hidden beast` number, since 181 + 2 + 430 + 9 + 44 = 666.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-2 number, since 2×18124309442 = 6569811853537462272, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 1812430899 and 1812430908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1812430943) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235542 + ... + 243114.
It is an arithmetic number, because the mean of its divisors is an integer number (55271265).
Almost surely, 21812430944 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 1812430944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2653020720).
1812430944 is an abundant number, since it is smaller than the sum of its proper divisors (3493610496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1812430944 is a wasteful number, since it uses less digits than its factorization.
1812430944 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7869 (or 7855 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 1812430944 is about 42572.6548855013. The cubic root of 1812430944 is about 1219.2342556560.
The spelling of 1812430944 in words is "one billion, eight hundred twelve million, four hundred thirty thousand, nine hundred forty-four".
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