Base | Representation |
---|---|
bin | 10001001110001… |
… | …00001110101111 |
3 | 101001211021001011 |
4 | 20213010032233 |
5 | 243440134141 |
6 | 22200130051 |
7 | 3402610210 |
oct | 1047041657 |
9 | 331737034 |
10 | 144458671 |
11 | 745a7a35 |
12 | 40466927 |
13 | 23c0b906 |
14 | 15285407 |
15 | ca37881 |
hex | 89c43af |
144458671 has 4 divisors (see below), whose sum is σ = 165095632. Its totient is φ = 123821712.
The previous prime is 144458663. The next prime is 144458687. The reversal of 144458671 is 176854441.
144458671 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, and also an emirpimes, since its reverse is a distinct semiprime: 176854441 = 29 ⋅6098429.
It is not a de Polignac number, because 144458671 - 23 = 144458663 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144458971) 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, 10318470 + ... + 10318483.
It is an arithmetic number, because the mean of its divisors is an integer number (41273908).
Almost surely, 2144458671 is an apocalyptic number.
144458671 is a deficient number, since it is larger than the sum of its proper divisors (20636961).
144458671 is an equidigital number, since it uses as much as digits as its factorization.
144458671 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20636960.
The product of its digits is 107520, while the sum is 40.
The square root of 144458671 is about 12019.0960974609. The cubic root of 144458671 is about 524.7041973874.
The spelling of 144458671 in words is "one hundred forty-four million, four hundred fifty-eight thousand, six hundred seventy-one".
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