Search a number
-
+
12868822 = 223377561
BaseRepresentation
bin110001000101…
…110011010110
3220012210201001
4301011303112
511243300242
61135453514
7214245301
oct61056326
926183631
1012868822
11729a59a
12438729a
1328875b5
1419cdb38
1511e2eb7
hexc45cd6

12868822 has 16 divisors (see below), whose sum is σ = 20689632. Its totient is φ = 5987520.

The previous prime is 12868811. The next prime is 12868829. The reversal of 12868822 is 22886821.

12868822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12868829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079 + ... + 5482.

It is an arithmetic number, because the mean of its divisors is an integer number (1293102).

Almost surely, 212868822 is an apocalyptic number.

12868822 is the 1918-th centered heptagonal number.

12868822 is a deficient number, since it is larger than the sum of its proper divisors (7820810).

12868822 is a wasteful number, since it uses less digits than its factorization.

12868822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its digits is 24576, while the sum is 37.

The square root of 12868822 is about 3587.3140369920. The cubic root of 12868822 is about 234.3399131358.

The spelling of 12868822 in words is "twelve million, eight hundred sixty-eight thousand, eight hundred twenty-two".

Divisors: 1 2 23 37 46 74 851 1702 7561 15122 173903 279757 347806 559514 6434411 12868822