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13019280 = 2435173191
BaseRepresentation
bin110001101010…
…100010010000
3220111110002120
4301222202100
511313104110
61143014240
7215443041
oct61524220
926443076
1013019280
11739263a
12443a380
13290ac21
141a2c8c8
151222870
hexc6a890

13019280 has 80 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 3266560.

The previous prime is 13019273. The next prime is 13019309. The reversal of 13019280 is 8291031.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13019280.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2485 + ... + 5675.

Almost surely, 213019280 is an apocalyptic number.

13019280 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 13019280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21373632).

13019280 is an abundant number, since it is smaller than the sum of its proper divisors (29727984).

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

13019280 is a wasteful number, since it uses less digits than its factorization.

13019280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 13019280 is about 3608.2239398352. The cubic root of 13019280 is about 235.2496516954.

The spelling of 13019280 in words is "thirteen million, nineteen thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 680 816 1020 1360 2040 3191 4080 6382 9573 12764 15955 19146 25528 31910 38292 47865 51056 54247 63820 76584 95730 108494 127640 153168 162741 191460 216988 255280 271235 325482 382920 433976 542470 650964 765840 813705 867952 1084940 1301928 1627410 2169880 2603856 3254820 4339760 6509640 13019280