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13058528 = 25797601
BaseRepresentation
bin110001110100…
…000111100000
3220120102221012
4301310013200
511320333103
61143520052
7215665340
oct61640740
926512835
1013058528
11740a07a
124459028
132922a52
141a3cd20
15122e2d8
hexc741e0

13058528 has 48 divisors (see below), whose sum is σ = 29733984. Its totient is φ = 5529600.

The previous prime is 13058489. The next prime is 13058537. The reversal of 13058528 is 82585031.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 13058494 and 13058503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21428 + ... + 22028.

It is an arithmetic number, because the mean of its divisors is an integer number (619458).

Almost surely, 213058528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13058528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14866992).

13058528 is an abundant number, since it is smaller than the sum of its proper divisors (16675456).

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

13058528 is an equidigital number, since it uses as much as digits as its factorization.

13058528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 13058528 is about 3613.6585339514. The cubic root of 13058528 is about 235.4858095527.

The spelling of 13058528 in words is "thirteen million, fifty-eight thousand, five hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 97 112 194 224 388 601 679 776 1202 1358 1552 2404 2716 3104 4207 4808 5432 8414 9616 10864 16828 19232 21728 33656 58297 67312 116594 134624 233188 408079 466376 816158 932752 1632316 1865504 3264632 6529264 13058528