Base | Representation |
---|---|
bin | 110001000110… |
… | …001101011100 |
3 | 220012212222220 |
4 | 301012031130 |
5 | 11243323432 |
6 | 1135505340 |
7 | 214253205 |
oct | 61061534 |
9 | 26185886 |
10 | 12870492 |
11 | 72a0878 |
12 | 4388250 |
13 | 288829b |
14 | 19d05ac |
15 | 11e372c |
hex | c4635c |
12870492 has 24 divisors (see below), whose sum is σ = 30112656. Its totient is φ = 4278528.
The previous prime is 12870469. The next prime is 12870493. The reversal of 12870492 is 29407821.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12870493) 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 in 7 ways as a sum of consecutive naturals, for example, 3958 + ... + 6434.
It is an arithmetic number, because the mean of its divisors is an integer number (1254694).
Almost surely, 212870492 is an apocalyptic number.
12870492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12870492 is an abundant number, since it is smaller than the sum of its proper divisors (17242164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12870492 is a wasteful number, since it uses less digits than its factorization.
12870492 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2917 (or 2915 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 12870492 is about 3587.5467941199. The cubic root of 12870492 is about 234.3500495395.
The spelling of 12870492 in words is "twelve million, eight hundred seventy thousand, four hundred ninety-two".
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