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13213080 = 23325172127
BaseRepresentation
bin110010011001…
…110110011000
3220212021221100
4302121312120
511340304310
61151111400
7220211046
oct62316630
926767840
1013213080
117505201
124512560
1329781ba
141a7d396
15125eec0
hexc99d98

13213080 has 144 divisors (see below), whose sum is σ = 45976320. Its totient is φ = 3290112.

The previous prime is 13213069. The next prime is 13213087. The reversal of 13213080 is 8031231.

13213080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213087) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 103977 + ... + 104103.

It is an arithmetic number, because the mean of its divisors is an integer number (319280).

Almost surely, 213213080 is an apocalyptic number.

13213080 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 13213080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22988160).

13213080 is an abundant number, since it is smaller than the sum of its proper divisors (32763240).

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

13213080 is a wasteful number, since it uses less digits than its factorization.

13213080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 13213080 is about 3634.9800549659. The cubic root of 13213080 is about 236.4111858794.

The spelling of 13213080 in words is "thirteen million, two hundred thirteen thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 127 136 153 170 180 204 254 255 289 306 340 360 381 408 508 510 578 612 635 680 762 765 867 1016 1020 1143 1156 1224 1270 1445 1524 1530 1734 1905 2040 2159 2286 2312 2540 2601 2890 3048 3060 3468 3810 4318 4335 4572 5080 5202 5715 5780 6120 6477 6936 7620 8636 8670 9144 10404 10795 11430 11560 12954 13005 15240 17272 17340 19431 20808 21590 22860 25908 26010 32385 34680 36703 38862 43180 45720 51816 52020 64770 73406 77724 86360 97155 104040 110109 129540 146812 155448 183515 194310 220218 259080 293624 330327 367030 388620 440436 550545 660654 734060 777240 880872 1101090 1321308 1468120 1651635 2202180 2642616 3303270 4404360 6606540 13213080