Base | Representation |
---|---|
bin | 10011011101101001100101 |
3 | 100121012212200 |
4 | 103131221211 |
5 | 2301232211 |
6 | 301205113 |
7 | 61240110 |
oct | 23355145 |
9 | 10535780 |
10 | 5102181 |
11 | 2975387 |
12 | 1860799 |
13 | 1098456 |
14 | 96b577 |
15 | 6abb56 |
hex | 4dda65 |
5102181 has 24 divisors (see below), whose sum is σ = 8511360. Its totient is φ = 2884896.
The previous prime is 5102177. The next prime is 5102219. The reversal of 5102181 is 1812015.
5102181 = T98 + T99 + ... + T315.
5102181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 5102181 - 22 = 5102177 is a prime.
It is a super-4 number, since 4×51021814 (a number of 28 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
5102181 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5102381) 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 23 ways as a sum of consecutive naturals, for example, 6496 + ... + 7238.
It is an arithmetic number, because the mean of its divisors is an integer number (354640).
Almost surely, 25102181 is an apocalyptic number.
It is an amenable number.
5102181 is a deficient number, since it is larger than the sum of its proper divisors (3409179).
5102181 is a wasteful number, since it uses less digits than its factorization.
5102181 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 865 (or 862 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 18.
The square root of 5102181 is about 2258.8007880289. The cubic root of 5102181 is about 172.1545955473.
Adding to 5102181 its reverse (1812015), we get a palindrome (6914196).
The spelling of 5102181 in words is "five million, one hundred two thousand, one hundred eighty-one".
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