Base | Representation |
---|---|
bin | 10001001100001… |
… | …11111001001010 |
3 | 101001100201000210 |
4 | 20212013321022 |
5 | 243404232110 |
6 | 22150541550 |
7 | 3400530531 |
oct | 1046077112 |
9 | 331321023 |
10 | 144211530 |
11 | 74449291 |
12 | 403678b6 |
13 | 23b53288 |
14 | 1521d318 |
15 | c9d9520 |
hex | 8987e4a |
144211530 has 32 divisors (see below), whose sum is σ = 347914944. Its totient is φ = 38255616.
The previous prime is 144211523. The next prime is 144211559. The reversal of 144211530 is 35112441.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 144211497 and 144211506.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6664 + ... + 18243.
It is an arithmetic number, because the mean of its divisors is an integer number (10872342).
Almost surely, 2144211530 is an apocalyptic number.
144211530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
144211530 is an abundant number, since it is smaller than the sum of its proper divisors (203703414).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144211530 is a wasteful number, since it uses less digits than its factorization.
144211530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25110.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 144211530 is about 12008.8105156173. The cubic root of 144211530 is about 524.4048039352.
Adding to 144211530 its reverse (35112441), we get a palindrome (179323971).
It can be divided in two parts, 14421 and 1530, that added together give a palindrome (15951).
The spelling of 144211530 in words is "one hundred forty-four million, two hundred eleven thousand, five hundred thirty".
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