Search a number
-
+
12803568 = 24319101139
BaseRepresentation
bin110000110101…
…110111110000
3220002111012020
4300311313300
511234203233
61134231440
7213554121
oct60656760
926074166
1012803568
117255568
124355580
13286399b
1419b4048
1511cd9b3
hexc35df0

12803568 has 80 divisors (see below), whose sum is σ = 35414400. Its totient is φ = 3974400.

The previous prime is 12803561. The next prime is 12803569. The reversal of 12803568 is 86530821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12803561) by changing a digit.

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, 92043 + ... + 92181.

It is an arithmetic number, because the mean of its divisors is an integer number (442680).

Almost surely, 212803568 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 12803568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17707200).

12803568 is an abundant number, since it is smaller than the sum of its proper divisors (22610832).

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

12803568 is a wasteful number, since it uses less digits than its factorization.

12803568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12803568 is about 3578.2073724143. The cubic root of 12803568 is about 233.9431522363.

The spelling of 12803568 in words is "twelve million, eight hundred three thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 101 114 139 152 202 228 278 303 304 404 417 456 556 606 808 834 912 1112 1212 1616 1668 1919 2224 2424 2641 3336 3838 4848 5282 5757 6672 7676 7923 10564 11514 14039 15352 15846 21128 23028 28078 30704 31692 42117 42256 46056 56156 63384 84234 92112 112312 126768 168468 224624 266741 336936 533482 673872 800223 1066964 1600446 2133928 3200892 4267856 6401784 12803568