Base | Representation |
---|---|
bin | 10001001011010… |
… | …00110011011111 |
3 | 101001010020100112 |
4 | 20211220303133 |
5 | 243341143231 |
6 | 22144120235 |
7 | 3366460346 |
oct | 1045506337 |
9 | 331106315 |
10 | 144084191 |
11 | 74371649 |
12 | 4030607b |
13 | 23b0a324 |
14 | 151c8b5d |
15 | c9b192b |
hex | 8968cdf |
144084191 has 4 divisors (see below), whose sum is σ = 144228000. Its totient is φ = 143940384.
The previous prime is 144084181. The next prime is 144084251. The reversal of 144084191 is 191480441.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191480441 = 9283 ⋅20627.
It is a cyclic number.
It is not a de Polignac number, because 144084191 - 218 = 143822047 is a prime.
It is a super-2 number, since 2×1440841912 = 41520508192248962, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144084131) 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, 70391 + ... + 72408.
It is an arithmetic number, because the mean of its divisors is an integer number (36057000).
Almost surely, 2144084191 is an apocalyptic number.
144084191 is a deficient number, since it is larger than the sum of its proper divisors (143809).
144084191 is a wasteful number, since it uses less digits than its factorization.
144084191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 143808.
The product of its (nonzero) digits is 4608, while the sum is 32.
The square root of 144084191 is about 12003.5074457427. The cubic root of 144084191 is about 524.2504084031.
The spelling of 144084191 in words is "one hundred forty-four million, eighty-four thousand, one hundred ninety-one".
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