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13105080 = 2332559617
BaseRepresentation
bin110001111111…
…011110111000
3220122210210100
4301333132320
511323330310
61144515400
7216251142
oct61773670
926583710
1013105080
11744104a
12447bb60
13293acb1
141a51c92
15123cec0
hexc7f7b8

13105080 has 96 divisors (see below), whose sum is σ = 43383600. Its totient is φ = 3429888.

The previous prime is 13105051. The next prime is 13105091. The reversal of 13105080 is 8050131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20932 + ... + 21548.

Almost surely, 213105080 is an apocalyptic number.

13105080 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 13105080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21691800).

13105080 is an abundant number, since it is smaller than the sum of its proper divisors (30278520).

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

13105080 is a wasteful number, since it uses less digits than its factorization.

13105080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 13105080 is about 3620.0939214335. The cubic root of 13105080 is about 235.7653034001.

The spelling of 13105080 in words is "thirteen million, one hundred five thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 59 60 72 90 118 120 177 180 236 295 354 360 472 531 590 617 708 885 1062 1180 1234 1416 1770 1851 2124 2360 2468 2655 3085 3540 3702 4248 4936 5310 5553 6170 7080 7404 9255 10620 11106 12340 14808 18510 21240 22212 24680 27765 36403 37020 44424 55530 72806 74040 109209 111060 145612 182015 218418 222120 291224 327627 364030 436836 546045 655254 728060 873672 1092090 1310508 1456120 1638135 2184180 2621016 3276270 4368360 6552540 13105080