Base | Representation |
---|---|
bin | 110010000100… |
… | …010111000000 |
3 | 220200211012012 |
4 | 302010113000 |
5 | 11330000211 |
6 | 1145152052 |
7 | 216363320 |
oct | 62042700 |
9 | 26624165 |
10 | 13125056 |
11 | 745505a |
12 | 448b628 |
13 | 2947109 |
14 | 1a59280 |
15 | 1243d8b |
hex | c845c0 |
13125056 has 28 divisors (see below), whose sum is σ = 29766768. Its totient is φ = 5624832.
The previous prime is 13125053. The next prime is 13125061. The reversal of 13125056 is 65052131.
It is a tau number, because it is divible by the number of its divisors (28).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13125053) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14201 + ... + 15096.
Almost surely, 213125056 is an apocalyptic number.
13125056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
13125056 is an abundant number, since it is smaller than the sum of its proper divisors (16641712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13125056 is an equidigital number, since it uses as much as digits as its factorization.
13125056 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29316 (or 29306 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 13125056 is about 3622.8519152734. The cubic root of 13125056 is about 235.8850344958.
Adding to 13125056 its reverse (65052131), we get a palindrome (78177187).
The spelling of 13125056 in words is "thirteen million, one hundred twenty-five thousand, fifty-six".
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