Base | Representation |
---|---|
bin | 110001101100… |
… | …000010100101 |
3 | 220111202112220 |
4 | 301230002211 |
5 | 11313303240 |
6 | 1143102553 |
7 | 215500026 |
oct | 61540245 |
9 | 26452486 |
10 | 13025445 |
11 | 7397234 |
12 | 4441a59 |
13 | 2910984 |
14 | 1a30c4d |
15 | 12245d0 |
hex | c6c0a5 |
13025445 has 16 divisors (see below), whose sum is σ = 20891520. Its totient is φ = 6929984.
The previous prime is 13025407. The next prime is 13025459. The reversal of 13025445 is 54452031.
It is a cyclic number.
It is not a de Polignac number, because 13025445 - 221 = 10928293 is a prime.
It is a congruent number.
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, 7576 + ... + 9134.
It is an arithmetic number, because the mean of its divisors is an integer number (1305720).
Almost surely, 213025445 is an apocalyptic number.
13025445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13025445 is a deficient number, since it is larger than the sum of its proper divisors (7866075).
13025445 is a wasteful number, since it uses less digits than its factorization.
13025445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2124.
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 13025445 is about 3609.0781371425. The cubic root of 13025445 is about 235.2867783066.
Adding to 13025445 its reverse (54452031), we get a palindrome (67477476).
The spelling of 13025445 in words is "thirteen million, twenty-five thousand, four hundred forty-five".
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