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13285960 = 2353747191
BaseRepresentation
bin110010101011…
…101001001000
3220222222220121
4302223221020
511400122320
61152433024
7220633402
oct62535110
926888817
1013285960
117554a36
124548774
1329a241c
141a9bb72
1512768aa
hexcaba48

13285960 has 64 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 5034240.

The previous prime is 13285933. The next prime is 13285963. The reversal of 13285960 is 6958231.

It is not an unprimeable number, because it can be changed into a prime (13285963) 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 15 ways as a sum of consecutive naturals, for example, 69465 + ... + 69655.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 213285960 is an apocalyptic number.

13285960 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 13285960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

13285960 is an abundant number, since it is smaller than the sum of its proper divisors (18232760).

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

13285960 is a wasteful number, since it uses less digits than its factorization.

13285960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 13285960 is about 3644.9910836654. The cubic root of 13285960 is about 236.8450505503.

The spelling of 13285960 in words is "thirteen million, two hundred eighty-five thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 37 40 47 74 94 148 185 188 191 235 296 370 376 382 470 740 764 940 955 1480 1528 1739 1880 1910 3478 3820 6956 7067 7640 8695 8977 13912 14134 17390 17954 28268 34780 35335 35908 44885 56536 69560 70670 71816 89770 141340 179540 282680 332149 359080 664298 1328596 1660745 2657192 3321490 6642980 13285960