Base | Representation |
---|---|
bin | 10001001100100… |
… | …01010000010111 |
3 | 101001102122122010 |
4 | 20212101100113 |
5 | 243411444004 |
6 | 22151435303 |
7 | 3401050404 |
oct | 1046212027 |
9 | 331378563 |
10 | 144249879 |
11 | 74475084 |
12 | 40385b33 |
13 | 23b67877 |
14 | 1522d2ab |
15 | c9e5a89 |
hex | 8991417 |
144249879 has 8 divisors (see below), whose sum is σ = 203646960. Its totient is φ = 90509696.
The previous prime is 144249877. The next prime is 144249883. The reversal of 144249879 is 978942441.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 144249879 - 21 = 144249877 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144249877) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1414164 + ... + 1414265.
It is an arithmetic number, because the mean of its divisors is an integer number (25455870).
Almost surely, 2144249879 is an apocalyptic number.
144249879 is a deficient number, since it is larger than the sum of its proper divisors (59397081).
144249879 is a wasteful number, since it uses less digits than its factorization.
144249879 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2828449.
The product of its digits is 580608, while the sum is 48.
The square root of 144249879 is about 12010.4071121673. The cubic root of 144249879 is about 524.4512833845.
The spelling of 144249879 in words is "one hundred forty-four million, two hundred forty-nine thousand, eight hundred seventy-nine".
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