Base | Representation |
---|---|
bin | 110001100001… |
… | …110011000110 |
3 | 220102122000011 |
4 | 301201303012 |
5 | 11310432434 |
6 | 1142140434 |
7 | 215233516 |
oct | 61416306 |
9 | 26378004 |
10 | 12983494 |
11 | 7368767 |
12 | 442171a |
13 | 28c7854 |
14 | 1a1d846 |
15 | 1216e64 |
hex | c61cc6 |
12983494 has 4 divisors (see below), whose sum is σ = 19475244. Its totient is φ = 6491746.
The previous prime is 12983489. The next prime is 12983497. The reversal of 12983494 is 49438921.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49438921 = 7 ⋅7062703.
It is a super-2 number, since 2×129834942 = 337142232896072, which contains 22 as substring.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12983497) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3245872 + ... + 3245875.
It is an arithmetic number, because the mean of its divisors is an integer number (4868811).
Almost surely, 212983494 is an apocalyptic number.
12983494 is a deficient number, since it is larger than the sum of its proper divisors (6491750).
12983494 is an equidigital number, since it uses as much as digits as its factorization.
12983494 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6491749.
The product of its digits is 62208, while the sum is 40.
The square root of 12983494 is about 3603.2615780706. The cubic root of 12983494 is about 235.0339109054.
The spelling of 12983494 in words is "twelve million, nine hundred eighty-three thousand, four hundred ninety-four".
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