Base | Representation |
---|---|
bin | 101111111010101… |
… | …001111000011111 |
3 | 2002000200121102022 |
4 | 233322221320133 |
5 | 3121244430210 |
6 | 211434250355 |
7 | 25631036342 |
oct | 5772517037 |
9 | 2060617368 |
10 | 803905055 |
11 | 382868848 |
12 | 1a52869bb |
13 | ca71c485 |
14 | 78aa4459 |
15 | 4a899155 |
hex | 2fea9e1f |
803905055 has 8 divisors (see below), whose sum is σ = 965260800. Its totient is φ = 642740896.
The previous prime is 803905021. The next prime is 803905073. The reversal of 803905055 is 550509308.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 803905055 - 220 = 802856479 is a prime.
It is a congruent number.
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, 38495 + ... + 55584.
It is an arithmetic number, because the mean of its divisors is an integer number (120657600).
Almost surely, 2803905055 is an apocalyptic number.
803905055 is a deficient number, since it is larger than the sum of its proper divisors (161355745).
803905055 is a wasteful number, since it uses less digits than its factorization.
803905055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 95793.
The product of its (nonzero) digits is 27000, while the sum is 35.
The square root of 803905055 is about 28353.2194820976. The cubic root of 803905055 is about 929.8257873082.
The spelling of 803905055 in words is "eight hundred three million, nine hundred five thousand, fifty-five".
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