Base | Representation |
---|---|
bin | 10001001101110… |
… | …11100001011001 |
3 | 101001202110010001 |
4 | 20212323201121 |
5 | 243433014001 |
6 | 22155253001 |
7 | 3402401212 |
oct | 1046734131 |
9 | 331673101 |
10 | 144423001 |
11 | 74583158 |
12 | 4044a161 |
13 | 23bc85c8 |
14 | 15276409 |
15 | ca2c001 |
hex | 89bb859 |
144423001 has 4 divisors (see below), whose sum is σ = 144485172. Its totient is φ = 144360832.
The previous prime is 144422983. The next prime is 144423023. The reversal of 144423001 is 100324441.
144423001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 122323600 + 22099401 = 11060^2 + 4701^2 .
It is a cyclic number.
It is not a de Polignac number, because 144423001 - 29 = 144422489 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 144423001.
It is not an unprimeable number, because it can be changed into a prime (144423061) 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, 27460 + ... + 32293.
It is an arithmetic number, because the mean of its divisors is an integer number (36121293).
Almost surely, 2144423001 is an apocalyptic number.
It is an amenable number.
144423001 is a deficient number, since it is larger than the sum of its proper divisors (62171).
144423001 is an equidigital number, since it uses as much as digits as its factorization.
144423001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62170.
The product of its (nonzero) digits is 384, while the sum is 19.
The square root of 144423001 is about 12017.6121172220. The cubic root of 144423001 is about 524.6610068580.
Adding to 144423001 its reverse (100324441), we get a palindrome (244747442).
The spelling of 144423001 in words is "one hundred forty-four million, four hundred twenty-three thousand, one".
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