Base | Representation |
---|---|
bin | 110001001000… |
… | …110100000000 |
3 | 220020102121201 |
4 | 301020310000 |
5 | 11244144102 |
6 | 1140030544 |
7 | 214326244 |
oct | 61106400 |
9 | 26212551 |
10 | 12881152 |
11 | 72a8889 |
12 | 4392454 |
13 | 28900ab |
14 | 19d4424 |
15 | 11e6987 |
hex | c48d00 |
12881152 has 36 divisors (see below), whose sum is σ = 26130496. Its totient is φ = 6336000.
The previous prime is 12881137. The next prime is 12881161. The reversal of 12881152 is 25118821.
It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 12881152.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16777 + ... + 17527.
Almost surely, 212881152 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12881152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13065248).
12881152 is an abundant number, since it is smaller than the sum of its proper divisors (13249344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12881152 is an frugal number, since it uses more digits than its factorization.
12881152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 834 (or 820 counting only the distinct ones).
The product of its digits is 1280, while the sum is 28.
The square root of 12881152 is about 3589.0321815219. The cubic root of 12881152 is about 234.4147319190.
Adding to 12881152 its reverse (25118821), we get a palindrome (37999973).
The spelling of 12881152 in words is "twelve million, eight hundred eighty-one thousand, one hundred fifty-two".
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