Base | Representation |
---|---|
bin | 10001001010110… |
… | …01111110101111 |
3 | 101001000011001122 |
4 | 20211121332233 |
5 | 243332222341 |
6 | 22142531155 |
7 | 3366115334 |
oct | 1045317657 |
9 | 331004048 |
10 | 144023471 |
11 | 7432aa69 |
12 | 40296abb |
13 | 23ab87b7 |
14 | 151b098b |
15 | c99d94b |
hex | 8959faf |
144023471 has 4 divisors (see below), whose sum is σ = 144102000. Its totient is φ = 143944944.
The previous prime is 144023443. The next prime is 144023491. The reversal of 144023471 is 174320441.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174320441 = 107 ⋅1629163.
It is a cyclic number.
It is not a de Polignac number, because 144023471 - 218 = 143761327 is a prime.
It is a super-3 number, since 3×1440234713 (a number of 25 digits) contains 333 as substring.
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 144023471.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144023441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36446 + ... + 40203.
It is an arithmetic number, because the mean of its divisors is an integer number (36025500).
Almost surely, 2144023471 is an apocalyptic number.
144023471 is a deficient number, since it is larger than the sum of its proper divisors (78529).
144023471 is an equidigital number, since it uses as much as digits as its factorization.
144023471 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78528.
The product of its (nonzero) digits is 2688, while the sum is 26.
The square root of 144023471 is about 12000.9779184865. The cubic root of 144023471 is about 524.1767548046.
The spelling of 144023471 in words is "one hundred forty-four million, twenty-three thousand, four hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.144 sec. • engine limits •