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13580580 = 22351323757
BaseRepresentation
bin110011110011…
…100100100100
3221112222001110
4303303210210
511434034310
61203025020
7223301346
oct63634444
927488043
1013580580
117736322
12466b170
132a76560
141b37296
1512d3d20
hexcf3924

13580580 has 96 divisors (see below), whose sum is σ = 42787584. Its totient is φ = 3193344.

The previous prime is 13580579. The next prime is 13580587. The reversal of 13580580 is 8508531.

It is a happy number.

13580580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×135805803 (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13580587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17562 + ... + 18318.

It is an arithmetic number, because the mean of its divisors is an integer number (445704).

Almost surely, 213580580 is an apocalyptic number.

13580580 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 13580580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21393792).

13580580 is an abundant number, since it is smaller than the sum of its proper divisors (29207004).

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

13580580 is a wasteful number, since it uses less digits than its factorization.

13580580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 13580580 is about 3685.1838488738. The cubic root of 13580580 is about 238.5829693445.

The spelling of 13580580 in words is "thirteen million, five hundred eighty thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 23 26 30 39 46 52 60 65 69 78 92 115 130 138 156 195 230 260 276 299 345 390 460 598 690 757 780 897 1196 1380 1495 1514 1794 2271 2990 3028 3588 3785 4485 4542 5980 7570 8970 9084 9841 11355 15140 17411 17940 19682 22710 29523 34822 39364 45420 49205 52233 59046 69644 87055 98410 104466 118092 147615 174110 196820 208932 226343 261165 295230 348220 452686 522330 590460 679029 905372 1044660 1131715 1358058 2263430 2716116 3395145 4526860 6790290 13580580