Base | Representation |
---|---|
bin | 1011011011111… |
… | …1000010001001 |
3 | 10100021001021011 |
4 | 2312333002021 |
5 | 44234442033 |
6 | 4432043521 |
7 | 1121503354 |
oct | 266770211 |
9 | 110231234 |
10 | 47968393 |
11 | 25093400 |
12 | 140935a1 |
13 | 9c26785 |
14 | 652929b |
15 | 4327ccd |
hex | 2dbf089 |
47968393 has 12 divisors (see below), whose sum is σ = 53223940. Its totient is φ = 43195680.
The previous prime is 47968379. The next prime is 47968411. The reversal of 47968393 is 39386974.
It can be written as a sum of positive squares in 2 ways, for example, as 14235529 + 33732864 = 3773^2 + 5808^2 .
It is not a de Polignac number, because 47968393 - 225 = 14413961 is a prime.
It is not an unprimeable number, because it can be changed into a prime (47968303) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11371 + ... + 15007.
Almost surely, 247968393 is an apocalyptic number.
It is an amenable number.
47968393 is a deficient number, since it is larger than the sum of its proper divisors (5255547).
47968393 is a wasteful number, since it uses less digits than its factorization.
47968393 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3768 (or 3757 counting only the distinct ones).
The product of its digits is 979776, while the sum is 49.
The square root of 47968393 is about 6925.9218159029. The cubic root of 47968393 is about 363.3443319810.
The spelling of 47968393 in words is "forty-seven million, nine hundred sixty-eight thousand, three hundred ninety-three".
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