Base | Representation |
---|---|
bin | 110101101111000… |
… | …1010110110000110 |
3 | 11122122210111020000 |
4 | 1223132022312012 |
5 | 12143041231404 |
6 | 454530022130 |
7 | 62452564224 |
oct | 15336126606 |
9 | 4578714200 |
10 | 1803070854 |
11 | 845871902 |
12 | 423a17946 |
13 | 229726a40 |
14 | 131675b14 |
15 | a8463339 |
hex | 6b78ad86 |
1803070854 has 80 divisors (see below), whose sum is σ = 4580101680. Its totient is φ = 525579840.
The previous prime is 1803070849. The next prime is 1803070921. The reversal of 1803070854 is 4580703081.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17484 + ... + 62544.
It is an arithmetic number, because the mean of its divisors is an integer number (57251271).
Almost surely, 21803070854 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1803070854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2290050840).
1803070854 is an abundant number, since it is smaller than the sum of its proper divisors (2777030826).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1803070854 is a wasteful number, since it uses less digits than its factorization.
1803070854 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45107 (or 45098 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 1803070854 is about 42462.5818103421. The cubic root of 1803070854 is about 1217.1317673700.
The spelling of 1803070854 in words is "one billion, eight hundred three million, seventy thousand, eight hundred fifty-four".
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