Base | Representation |
---|---|
bin | 1111101010110… |
… | …10000101101001 |
3 | 100011022220011020 |
4 | 13311122011221 |
5 | 232122103001 |
6 | 21013123053 |
7 | 3154141626 |
oct | 765320551 |
9 | 304286136 |
10 | 131441001 |
11 | 6821662a |
12 | 38029489 |
13 | 21301653 |
14 | 1365734d |
15 | b815736 |
hex | 7d5a169 |
131441001 has 8 divisors (see below), whose sum is σ = 175342464. Its totient is φ = 87583440.
The previous prime is 131440997. The next prime is 131441027. The reversal of 131441001 is 100144131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 131441001 - 22 = 131440997 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131441071) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3201 + ... + 16526.
It is an arithmetic number, because the mean of its divisors is an integer number (21917808).
Almost surely, 2131441001 is an apocalyptic number.
It is an amenable number.
131441001 is a deficient number, since it is larger than the sum of its proper divisors (43901463).
131441001 is a wasteful number, since it uses less digits than its factorization.
131441001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21951.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 131441001 is about 11464.7721739248. The cubic root of 131441001 is about 508.4445766631. Note that the first 3 decimals are identical.
Adding to 131441001 its reverse (100144131), we get a palindrome (231585132).
The spelling of 131441001 in words is "one hundred thirty-one million, four hundred forty-one thousand, one".
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