Search a number
-
+
12708864 = 210327197
BaseRepresentation
bin110000011110…
…110000000000
3212220200021200
4300132300000
511223140424
61132221200
7213011040
oct60366000
925820250
1012708864
1171a03a3
12430a800
13282c84c
14198b720
1511b08c9
hexc1ec00

12708864 has 132 divisors (see below), whose sum is σ = 42151824. Its totient is φ = 3612672.

The previous prime is 12708823. The next prime is 12708869. The reversal of 12708864 is 46880721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12708869) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64414 + ... + 64610.

It is an arithmetic number, because the mean of its divisors is an integer number (319332).

Almost surely, 212708864 is an apocalyptic number.

12708864 is a gapful number since it is divisible by the number (14) 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 12708864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21075912).

12708864 is an abundant number, since it is smaller than the sum of its proper divisors (29442960).

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

12708864 is a wasteful number, since it uses less digits than its factorization.

12708864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 12708864 is about 3564.9493685044. The cubic root of 12708864 is about 233.3649227073.

The spelling of 12708864 in words is "twelve million, seven hundred eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 197 224 252 256 288 336 384 394 448 504 512 576 591 672 768 788 896 1008 1024 1152 1182 1344 1379 1536 1576 1773 1792 2016 2304 2364 2688 2758 3072 3152 3546 3584 4032 4137 4608 4728 5376 5516 6304 7092 7168 8064 8274 9216 9456 10752 11032 12411 12608 14184 16128 16548 18912 21504 22064 24822 25216 28368 32256 33096 37824 44128 49644 50432 56736 64512 66192 75648 88256 99288 100864 113472 132384 151296 176512 198576 201728 226944 264768 302592 353024 397152 453888 529536 605184 706048 794304 907776 1059072 1412096 1588608 1815552 2118144 3177216 4236288 6354432 12708864