Base | Representation |
---|---|
bin | 10001001010101… |
… | …11101110001101 |
3 | 101000222200101001 |
4 | 20211113232031 |
5 | 243331423341 |
6 | 22142420301 |
7 | 3366046351 |
oct | 1045275615 |
9 | 330880331 |
10 | 144014221 |
11 | 7432401a |
12 | 40291691 |
13 | 23ab4520 |
14 | 151ab461 |
15 | c99ad31 |
hex | 8957b8d |
144014221 has 8 divisors (see below), whose sum is σ = 157721760. Its totient is φ = 130682352.
The previous prime is 144014219. The next prime is 144014231. The reversal of 144014221 is 122410441.
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 144014221 - 21 = 144014219 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 (144014231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93115 + ... + 94648.
It is an arithmetic number, because the mean of its divisors is an integer number (19715220).
Almost surely, 2144014221 is an apocalyptic number.
It is an amenable number.
144014221 is a deficient number, since it is larger than the sum of its proper divisors (13707539).
144014221 is a wasteful number, since it uses less digits than its factorization.
144014221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 187835.
The product of its (nonzero) digits is 256, while the sum is 19.
The square root of 144014221 is about 12000.5925270380. The cubic root of 144014221 is about 524.1655327013.
Adding to 144014221 its reverse (122410441), we get a palindrome (266424662).
The spelling of 144014221 in words is "one hundred forty-four million, fourteen thousand, two hundred twenty-one".
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