| Base | Representation |
|---|---|
| bin | 110010101100… |
| … | …010001111100 |
| 3 | 221000010111100 |
| 4 | 302230101330 |
| 5 | 11400213242 |
| 6 | 1152453100 |
| 7 | 220644123 |
| oct | 62542174 |
| 9 | 27003440 |
| 10 | 13288572 |
| 11 | 75569a0 |
| 12 | 454a190 |
| 13 | 29a367b |
| 14 | 1a9caba |
| 15 | 127754c |
| hex | cac47c |
13288572 has 72 divisors (see below), whose sum is σ = 38263680. Its totient is φ = 3849120.
The previous prime is 13288567. The next prime is 13288603. The reversal of 13288572 is 27588231.
13288572 is a `hidden beast` number, since 1 + 3 + 2 + 88 + 572 = 666.
13288572 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-2 number, since 2×132885722 = 353172291598368, which contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8379 + ... + 9837.
It is an arithmetic number, because the mean of its divisors is an integer number (531440).
Almost surely, 213288572 is an apocalyptic number.
13288572 is a gapful number since it is divisible by the number (12) 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 13288572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19131840).
13288572 is an abundant number, since it is smaller than the sum of its proper divisors (24975108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13288572 is a wasteful number, since it uses less digits than its factorization.
13288572 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1503 (or 1498 counting only the distinct ones).
The product of its digits is 26880, while the sum is 36.
The square root of 13288572 is about 3645.3493659730. The cubic root of 13288572 is about 236.8605706617.
The spelling of 13288572 in words is "thirteen million, two hundred eighty-eight thousand, five hundred seventy-two".
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