Base | Representation |
---|---|
bin | 10001001101110… |
… | …00110111100011 |
3 | 101001201220012110 |
4 | 20212320313203 |
5 | 243432142011 |
6 | 22155130403 |
7 | 3402324423 |
oct | 1046706743 |
9 | 331656173 |
10 | 144412131 |
11 | 74575a76 |
12 | 40443a03 |
13 | 23bc3686 |
14 | 15272483 |
15 | ca28ba6 |
hex | 89b8de3 |
144412131 has 4 divisors (see below), whose sum is σ = 192549512. Its totient is φ = 96274752.
The previous prime is 144412129. The next prime is 144412171. The reversal of 144412131 is 131214441.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131214441 = 3 ⋅43738147.
It is not a de Polignac number, because 144412131 - 21 = 144412129 is a prime.
It is a super-2 number, since 2×1444121312 = 41709727159922322, 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 = 144412098 and 144412107.
It is not an unprimeable number, because it can be changed into a prime (144412171) 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, 24068686 + ... + 24068691.
It is an arithmetic number, because the mean of its divisors is an integer number (48137378).
Almost surely, 2144412131 is an apocalyptic number.
144412131 is a deficient number, since it is larger than the sum of its proper divisors (48137381).
144412131 is an equidigital number, since it uses as much as digits as its factorization.
144412131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 48137380.
The product of its digits is 384, while the sum is 21.
The square root of 144412131 is about 12017.1598558062. The cubic root of 144412131 is about 524.6478436541.
Adding to 144412131 its reverse (131214441), we get a palindrome (275626572).
The spelling of 144412131 in words is "one hundred forty-four million, four hundred twelve thousand, one hundred thirty-one".
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