Base | Representation |
---|---|
bin | 110001000111… |
… | …010011101010 |
3 | 220020010011100 |
4 | 301013103222 |
5 | 11243444421 |
6 | 1135542230 |
7 | 214302255 |
oct | 61072352 |
9 | 26203140 |
10 | 12874986 |
11 | 72a4193 |
12 | 438a976 |
13 | 288a347 |
14 | 19d209c |
15 | 11e4c26 |
hex | c474ea |
12874986 has 48 divisors (see below), whose sum is σ = 29450304. Its totient is φ = 4057152.
The previous prime is 12874973. The next prime is 12874987. The reversal of 12874986 is 68947821.
12874986 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (12874987) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56605 + ... + 56831.
It is an arithmetic number, because the mean of its divisors is an integer number (613548).
Almost surely, 212874986 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12874986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14725152).
12874986 is an abundant number, since it is smaller than the sum of its proper divisors (16575318).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12874986 is a wasteful number, since it uses less digits than its factorization.
12874986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 395 (or 392 counting only the distinct ones).
The product of its digits is 193536, while the sum is 45.
The square root of 12874986 is about 3588.1730727489. The cubic root of 12874986 is about 234.3773224303.
The spelling of 12874986 in words is "twelve million, eight hundred seventy-four thousand, nine hundred eighty-six".
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