Base | Representation |
---|---|
bin | 1111101010110… |
… | …10001011111001 |
3 | 100011022220201001 |
4 | 13311122023321 |
5 | 232122111101 |
6 | 21013125001 |
7 | 3154143040 |
oct | 765321371 |
9 | 304286631 |
10 | 131441401 |
11 | 68216963 |
12 | 38029761 |
13 | 213018a0 |
14 | 13657557 |
15 | b815901 |
hex | 7d5a2f9 |
131441401 has 8 divisors (see below), whose sum is σ = 161774144. Its totient is φ = 103997520.
The previous prime is 131441381. The next prime is 131441413. The reversal of 131441401 is 104144131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 131441401 - 27 = 131441273 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131441461) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722115 + ... + 722296.
It is an arithmetic number, because the mean of its divisors is an integer number (20221768).
Almost surely, 2131441401 is an apocalyptic number.
It is an amenable number.
131441401 is a deficient number, since it is larger than the sum of its proper divisors (30332743).
131441401 is a wasteful number, since it uses less digits than its factorization.
131441401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1444431.
The product of its (nonzero) digits is 192, while the sum is 19.
The square root of 131441401 is about 11464.7896186542. The cubic root of 131441401 is about 508.4450924271.
Adding to 131441401 its reverse (104144131), we get a palindrome (235585532).
The spelling of 131441401 in words is "one hundred thirty-one million, four hundred forty-one thousand, four hundred one".
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