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12868288 = 26673001
BaseRepresentation
bin110001000101…
…101011000000
3220012202222021
4301011223000
511243241123
61135451224
7214243606
oct61055300
926182867
1012868288
11729a154
124386b14
132887294
1419cd876
1511e2c5d
hexc45ac0

12868288 has 28 divisors (see below), whose sum is σ = 25925272. Its totient is φ = 6336000.

The previous prime is 12868283. The next prime is 12868291. The reversal of 12868288 is 88286821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12868283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2788 + ... + 5788.

Almost surely, 212868288 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 12868288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12962636).

12868288 is an abundant number, since it is smaller than the sum of its proper divisors (13056984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12868288 is an equidigital number, since it uses as much as digits as its factorization.

12868288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3070 counting only the distinct ones).

The product of its digits is 98304, while the sum is 43.

The square root of 12868288 is about 3587.2396072747. The cubic root of 12868288 is about 234.3366717294.

The spelling of 12868288 in words is "twelve million, eight hundred sixty-eight thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 32 64 67 134 268 536 1072 2144 3001 4288 6002 12004 24008 48016 96032 192064 201067 402134 804268 1608536 3217072 6434144 12868288