Base | Representation |
---|---|
bin | 110001001001… |
… | …110101111100 |
3 | 220020122102000 |
4 | 301021311330 |
5 | 11244312442 |
6 | 1140102300 |
7 | 214344453 |
oct | 61116574 |
9 | 26218360 |
10 | 12885372 |
11 | 7300a75 |
12 | 4394990 |
13 | 2891ca6 |
14 | 19d5b9a |
15 | 11e7d4c |
hex | c49d7c |
12885372 has 48 divisors (see below), whose sum is σ = 33616800. Its totient is φ = 4268160.
The previous prime is 12885349. The next prime is 12885409. The reversal of 12885372 is 27358821.
12885372 is a `hidden beast` number, since 1 + 288 + 5 + 372 = 666.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
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, 24472 + ... + 24992.
It is an arithmetic number, because the mean of its divisors is an integer number (700350).
Almost surely, 212885372 is an apocalyptic number.
12885372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12885372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16808400).
12885372 is an abundant number, since it is smaller than the sum of its proper divisors (20731428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12885372 is a wasteful number, since it uses less digits than its factorization.
12885372 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 763 (or 755 counting only the distinct ones).
The product of its digits is 26880, while the sum is 36.
The square root of 12885372 is about 3589.6200356027. The cubic root of 12885372 is about 234.4403280292.
The spelling of 12885372 in words is "twelve million, eight hundred eighty-five thousand, three hundred seventy-two".
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