Base | Representation |
---|---|
bin | 110000000010101… |
… | …001111001101001 |
3 | 2002011122011021100 |
4 | 300002221321221 |
5 | 3122314033111 |
6 | 211551232013 |
7 | 25654622610 |
oct | 6002517151 |
9 | 2064564240 |
10 | 806002281 |
11 | 383a70497 |
12 | 1a5b18609 |
13 | caca4c36 |
14 | 7908c877 |
15 | 4ab60756 |
hex | 300a9e69 |
806002281 has 12 divisors (see below), whose sum is σ = 1330543552. Its totient is φ = 460572696.
The previous prime is 806002261. The next prime is 806002291. The reversal of 806002281 is 182200608.
It is not a de Polignac number, because 806002281 - 29 = 806001769 is a prime.
It is a super-2 number, since 2×8060022812 = 1299279353954405922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (806002261) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6396781 + ... + 6396906.
Almost surely, 2806002281 is an apocalyptic number.
It is an amenable number.
806002281 is a deficient number, since it is larger than the sum of its proper divisors (524541271).
806002281 is a wasteful number, since it uses less digits than its factorization.
806002281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12793700 (or 12793697 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 806002281 is about 28390.1793055275. The cubic root of 806002281 is about 930.6336611118.
Adding to 806002281 its reverse (182200608), we get a palindrome (988202889).
The spelling of 806002281 in words is "eight hundred six million, two thousand, two hundred eighty-one".
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