Base | Representation |
---|---|
bin | 110001100010… |
… | …000010100001 |
3 | 220102200100201 |
4 | 301202002201 |
5 | 11311000411 |
6 | 1142145201 |
7 | 215236426 |
oct | 61420241 |
9 | 26380321 |
10 | 12984481 |
11 | 7369484 |
12 | 4422201 |
13 | 28c8133 |
14 | 1a1dd4d |
15 | 12173c1 |
hex | c620a1 |
12984481 has 12 divisors (see below), whose sum is σ = 13925520. Its totient is φ = 12104000.
The previous prime is 12984473. The next prime is 12984487. The reversal of 12984481 is 18448921.
It is not a de Polignac number, because 12984481 - 23 = 12984473 is a prime.
It is a super-2 number, since 2×129844812 = 337193493678722, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12984481.
It is not an unprimeable number, because it can be changed into a prime (12984487) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51606 + ... + 51856.
It is an arithmetic number, because the mean of its divisors is an integer number (1160460).
Almost surely, 212984481 is an apocalyptic number.
It is an amenable number.
12984481 is a deficient number, since it is larger than the sum of its proper divisors (941039).
12984481 is a wasteful number, since it uses less digits than its factorization.
12984481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 464 (or 447 counting only the distinct ones).
The product of its digits is 18432, while the sum is 37.
The square root of 12984481 is about 3603.3985347169. The cubic root of 12984481 is about 235.0398664823.
The spelling of 12984481 in words is "twelve million, nine hundred eighty-four thousand, four hundred eighty-one".
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