Base | Representation |
---|---|
bin | 10001001011101… |
… | …00100101001111 |
3 | 101001012200112012 |
4 | 20211310211033 |
5 | 243344214211 |
6 | 22145131435 |
7 | 3400051112 |
oct | 1045644517 |
9 | 331180465 |
10 | 144132431 |
11 | 743a4913 |
12 | 40329b7b |
13 | 23b26281 |
14 | 151dc579 |
15 | c9c0d8b |
hex | 897494f |
144132431 has 8 divisors (see below), whose sum is σ = 147969360. Its totient is φ = 140317632.
The previous prime is 144132413. The next prime is 144132433. The reversal of 144132431 is 134231441.
144132431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 144132431 - 26 = 144132367 is a prime.
It is a super-2 number, since 2×1441324312 = 41548315331939522, 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 = 144132397 and 144132406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144132433) 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, 8105 + ... + 18813.
It is an arithmetic number, because the mean of its divisors is an integer number (18496170).
Almost surely, 2144132431 is an apocalyptic number.
144132431 is a deficient number, since it is larger than the sum of its proper divisors (3836929).
144132431 is a wasteful number, since it uses less digits than its factorization.
144132431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11065.
The product of its digits is 1152, while the sum is 23.
The square root of 144132431 is about 12005.5166902554. The cubic root of 144132431 is about 524.3089089637.
Adding to 144132431 its reverse (134231441), we get a palindrome (278363872).
The spelling of 144132431 in words is "one hundred forty-four million, one hundred thirty-two thousand, four hundred thirty-one".
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