Base | Representation |
---|---|
bin | 10011100010000010110101 |
3 | 100122010120100 |
4 | 103202002311 |
5 | 2302321211 |
6 | 301424313 |
7 | 61343433 |
oct | 23420265 |
9 | 10563510 |
10 | 5120181 |
11 | 2987960 |
12 | 186b099 |
13 | 10a36c1 |
14 | 973d53 |
15 | 6b2156 |
hex | 4e20b5 |
5120181 has 12 divisors (see below), whose sum is σ = 8068320. Its totient is φ = 3103080.
The previous prime is 5120131. The next prime is 5120183. The reversal of 5120181 is 1810215.
It is not a de Polignac number, because 5120181 - 26 = 5120117 is a prime.
It is a super-2 number, since 2×51201812 = 52432506945522, which contains 22 as substring.
5120181 is a lucky number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (5120183) 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, 25761 + ... + 25958.
It is an arithmetic number, because the mean of its divisors is an integer number (672360).
Almost surely, 25120181 is an apocalyptic number.
It is an amenable number.
5120181 is a deficient number, since it is larger than the sum of its proper divisors (2948139).
5120181 is a wasteful number, since it uses less digits than its factorization.
5120181 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51736 (or 51733 counting only the distinct ones).
The product of its (nonzero) digits is 80, while the sum is 18.
The square root of 5120181 is about 2262.7816951708. The cubic root of 5120181 is about 172.3568061822.
Adding to 5120181 its reverse (1810215), we get a palindrome (6930396).
The spelling of 5120181 in words is "five million, one hundred twenty thousand, one hundred eighty-one".
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