Base | Representation |
---|---|
bin | 10001001011111… |
… | …00110110001001 |
3 | 101001021101221220 |
4 | 20211330312021 |
5 | 243401310111 |
6 | 22145552253 |
7 | 3400251600 |
oct | 1045746611 |
9 | 331241856 |
10 | 144166281 |
11 | 74418296 |
12 | 40345689 |
13 | 23b387bc |
14 | 1520aa37 |
15 | c9cae06 |
hex | 897cd89 |
144166281 has 48 divisors (see below), whose sum is σ = 239016960. Its totient is φ = 76839840.
The previous prime is 144166271. The next prime is 144166301. The reversal of 144166281 is 182661441.
144166281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 144166281 - 210 = 144165257 is a prime.
It is a super-2 number, since 2×1441662812 = 41567833154741922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (144166261) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 197940 + ... + 198666.
It is an arithmetic number, because the mean of its divisors is an integer number (4979520).
Almost surely, 2144166281 is an apocalyptic number.
It is an amenable number.
144166281 is a deficient number, since it is larger than the sum of its proper divisors (94850679).
144166281 is a wasteful number, since it uses less digits than its factorization.
144166281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 834 (or 827 counting only the distinct ones).
The product of its digits is 9216, while the sum is 33.
The square root of 144166281 is about 12006.9263760548. The cubic root of 144166281 is about 524.3499510045.
The spelling of 144166281 in words is "one hundred forty-four million, one hundred sixty-six thousand, two hundred eighty-one".
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