Base | Representation |
---|---|
bin | 10001010000101… |
… | …10010011010111 |
3 | 101002110100011211 |
4 | 20220112103113 |
5 | 244031413324 |
6 | 22211242251 |
7 | 3405510250 |
oct | 1050262327 |
9 | 332410154 |
10 | 144794839 |
11 | 74807562 |
12 | 405a9387 |
13 | 23cc8927 |
14 | 15331b27 |
15 | caa2294 |
hex | 8a164d7 |
144794839 has 16 divisors (see below), whose sum is σ = 176800000. Its totient is φ = 115815744.
The previous prime is 144794833. The next prime is 144794851. The reversal of 144794839 is 938497441.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-144794839 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 144794792 and 144794801.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (144794833) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787 + ... + 17035.
It is an arithmetic number, because the mean of its divisors is an integer number (11050000).
Almost surely, 2144794839 is an apocalyptic number.
144794839 is a gapful number since it is divisible by the number (19) formed by its first and last digit.
144794839 is a deficient number, since it is larger than the sum of its proper divisors (32005161).
144794839 is a wasteful number, since it uses less digits than its factorization.
144794839 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16342.
The product of its digits is 870912, while the sum is 49.
The square root of 144794839 is about 12033.0727164760. The cubic root of 144794839 is about 525.1108929771.
The spelling of 144794839 in words is "one hundred forty-four million, seven hundred ninety-four thousand, eight hundred thirty-nine".
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