Base | Representation |
---|---|
bin | 110010010111… |
… | …000001111010 |
3 | 220211201002120 |
4 | 302113001322 |
5 | 11334422110 |
6 | 1150542110 |
7 | 220132266 |
oct | 62270172 |
9 | 26751076 |
10 | 13201530 |
11 | 74a7561 |
12 | 4507936 |
13 | 2972b74 |
14 | 1a790a6 |
15 | 125b870 |
hex | c9707a |
13201530 has 32 divisors (see below), whose sum is σ = 31788288. Its totient is φ = 3508800.
The previous prime is 13201511. The next prime is 13201541. The reversal of 13201530 is 3510231.
It is a happy number.
13201530 is digitally balanced in base 2 and base 4, because in such bases 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 (15).
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, 12420 + ... + 13440.
It is an arithmetic number, because the mean of its divisors is an integer number (993384).
Almost surely, 213201530 is an apocalyptic number.
13201530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13201530 is an abundant number, since it is smaller than the sum of its proper divisors (18586758).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13201530 is a wasteful number, since it uses less digits than its factorization.
13201530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1462.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 13201530 is about 3633.3909781360. The cubic root of 13201530 is about 236.3422807943.
Adding to 13201530 its reverse (3510231), we get a palindrome (16711761).
It can be divided in two parts, 13201 and 530, that added together give a palindrome (13731).
The spelling of 13201530 in words is "thirteen million, two hundred one thousand, five hundred thirty".
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