Base | Representation |
---|---|
bin | 1111101010110… |
… | …10111000010001 |
3 | 100011100001121020 |
4 | 13311122320101 |
5 | 232122203431 |
6 | 21013150053 |
7 | 3154154235 |
oct | 765327021 |
9 | 304301536 |
10 | 131444241 |
11 | 68219005 |
12 | 3802b329 |
13 | 21302c76 |
14 | 136585c5 |
15 | b816696 |
hex | 7d5ae11 |
131444241 has 16 divisors (see below), whose sum is σ = 183229440. Its totient is φ = 83658960.
The previous prime is 131444233. The next prime is 131444251. The reversal of 131444241 is 142444131.
It is not a de Polignac number, because 131444241 - 23 = 131444233 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131444231) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42030 + ... + 45048.
It is an arithmetic number, because the mean of its divisors is an integer number (11451840).
Almost surely, 2131444241 is an apocalyptic number.
It is an amenable number.
131444241 is a deficient number, since it is larger than the sum of its proper divisors (51785199).
131444241 is a wasteful number, since it uses less digits than its factorization.
131444241 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3676.
The product of its digits is 1536, while the sum is 24.
The square root of 131444241 is about 11464.9134754694. The cubic root of 131444241 is about 508.4487543217.
Adding to 131444241 its reverse (142444131), we get a palindrome (273888372).
The spelling of 131444241 in words is "one hundred thirty-one million, four hundred forty-four thousand, two hundred forty-one".
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