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13073280 = 273511619
BaseRepresentation
bin110001110111…
…101110000000
3220121012011120
4301313232000
511321321110
61144112240
7216056343
oct61675600
926535146
1013073280
11741a170
124465680
13292968c
141a4445a
151233870
hexc77b80

13073280 has 128 divisors (see below), whose sum is σ = 45532800. Its totient is φ = 3164160.

The previous prime is 13073267. The next prime is 13073293. The reversal of 13073280 is 8237031.

13073280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13073267) and next prime (13073293).

It is a tau number, because it is divible by the number of its divisors (128).

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 13073280.

It is a congruent number.

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, 20811 + ... + 21429.

It is an arithmetic number, because the mean of its divisors is an integer number (355725).

Almost surely, 213073280 is an apocalyptic number.

13073280 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 13073280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22766400).

13073280 is an abundant number, since it is smaller than the sum of its proper divisors (32459520).

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

13073280 is a wasteful number, since it uses less digits than its factorization.

13073280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13073280 is about 3615.6991025250. The cubic root of 13073280 is about 235.5744509716.

The spelling of 13073280 in words is "thirteen million, seventy-three thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 64 66 80 88 96 110 120 128 132 160 165 176 192 220 240 264 320 330 352 384 440 480 528 619 640 660 704 880 960 1056 1238 1320 1408 1760 1857 1920 2112 2476 2640 3095 3520 3714 4224 4952 5280 6190 6809 7040 7428 9285 9904 10560 12380 13618 14856 18570 19808 20427 21120 24760 27236 29712 34045 37140 39616 40854 49520 54472 59424 68090 74280 79232 81708 99040 102135 108944 118848 136180 148560 163416 198080 204270 217888 237696 272360 297120 326832 396160 408540 435776 544720 594240 653664 817080 871552 1089440 1188480 1307328 1634160 2178880 2614656 3268320 4357760 6536640 13073280