Base | Representation |
---|---|
bin | 1111101010110… |
… | …10000110001001 |
3 | 100011022220012102 |
4 | 13311122012021 |
5 | 232122103113 |
6 | 21013123145 |
7 | 3154142003 |
oct | 765320611 |
9 | 304286172 |
10 | 131441033 |
11 | 68216659 |
12 | 380294b5 |
13 | 21301679 |
14 | 13657373 |
15 | b815758 |
hex | 7d5a189 |
131441033 has 4 divisors (see below), whose sum is σ = 131565060. Its totient is φ = 131317008.
The previous prime is 131441027. The next prime is 131441053. The reversal of 131441033 is 330144131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330144131 = 17 ⋅19420243.
It can be written as a sum of positive squares in 2 ways, for example, as 100560784 + 30880249 = 10028^2 + 5557^2 .
It is a cyclic number.
It is not a de Polignac number, because 131441033 - 214 = 131424649 is a prime.
It is a super-2 number, since 2×1314410332 = 34553490312214178, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 131440996 and 131441014.
It is not an unprimeable number, because it can be changed into a prime (131441053) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60410 + ... + 62547.
It is an arithmetic number, because the mean of its divisors is an integer number (32891265).
Almost surely, 2131441033 is an apocalyptic number.
It is an amenable number.
131441033 is a deficient number, since it is larger than the sum of its proper divisors (124027).
131441033 is a wasteful number, since it uses less digits than its factorization.
131441033 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 124026.
The product of its (nonzero) digits is 432, while the sum is 20.
The square root of 131441033 is about 11464.7735695041. The cubic root of 131441033 is about 508.4446179243. Note that the first 3 decimals are identical.
Adding to 131441033 its reverse (330144131), we get a palindrome (461585164).
The spelling of 131441033 in words is "one hundred thirty-one million, four hundred forty-one thousand, thirty-three".
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