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13328980 = 225732967
BaseRepresentation
bin110010110110…
…001001010100
3221002011220221
4302312021110
511403011410
61153404124
7221203000
oct62661124
927064827
1013328980
117584295
124569644
1329b8b92
141aad700
1512844da
hexcb6254

13328980 has 96 divisors (see below), whose sum is σ = 34272000. Its totient is φ = 4346496.

The previous prime is 13328971. The next prime is 13328981. The reversal of 13328980 is 8982331.

13328980 is nontrivially palindromic in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13328981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198907 + ... + 198973.

It is an arithmetic number, because the mean of its divisors is an integer number (357000).

Almost surely, 213328980 is an apocalyptic number.

13328980 is a gapful number since it is divisible by the number (10) 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 13328980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17136000).

13328980 is an abundant number, since it is smaller than the sum of its proper divisors (20943020).

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

13328980 is a wasteful number, since it uses less digits than its factorization.

13328980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 13328980 is about 3650.8875633194. The cubic root of 13328980 is about 237.1004102532.

The spelling of 13328980 in words is "thirteen million, three hundred twenty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 29 35 49 58 67 70 98 116 134 140 145 196 203 245 268 290 335 343 406 469 490 580 670 686 812 938 980 1015 1340 1372 1421 1715 1876 1943 2030 2345 2842 3283 3430 3886 4060 4690 5684 6566 6860 7105 7772 9380 9715 9947 13132 13601 14210 16415 19430 19894 22981 27202 28420 32830 38860 39788 45962 49735 54404 65660 68005 91924 95207 99470 114905 136010 190414 198940 229810 272020 380828 459620 476035 666449 952070 1332898 1904140 2665796 3332245 6664490 13328980