Base | Representation |
---|---|
bin | 10001001111111… |
… | …00001110100000 |
3 | 101002020220200000 |
4 | 20213330032200 |
5 | 244020004112 |
6 | 22205100000 |
7 | 3404553666 |
oct | 1047741640 |
9 | 332226600 |
10 | 144688032 |
11 | 74744295 |
12 | 40557600 |
13 | 23c8c128 |
14 | 15304c36 |
15 | ca807dc |
hex | 89fc3a0 |
144688032 has 144 divisors (see below), whose sum is σ = 445798080. Its totient is φ = 46075392.
The previous prime is 144687997. The next prime is 144688051. The reversal of 144688032 is 230886441.
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a zygodrome in base 9.
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 23 ways as a sum of consecutive naturals, for example, 178444 + ... + 179252.
It is an arithmetic number, because the mean of its divisors is an integer number (3095820).
Almost surely, 2144688032 is an apocalyptic number.
144688032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 144688032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222899040).
144688032 is an abundant number, since it is smaller than the sum of its proper divisors (301110048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
144688032 is an equidigital number, since it uses as much as digits as its factorization.
144688032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 857 (or 837 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 36.
The square root of 144688032 is about 12028.6338376393. The cubic root of 144688032 is about 524.9817463041.
It can be divided in two parts, 14468 and 8032, that added together give a square (22500 = 1502).
The spelling of 144688032 in words is "one hundred forty-four million, six hundred eighty-eight thousand, thirty-two".
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