Base | Representation |
---|---|
bin | 110001101000… |
… | …010101000000 |
3 | 220110222200202 |
4 | 301220111000 |
5 | 11312311430 |
6 | 1142504332 |
7 | 215404505 |
oct | 61502500 |
9 | 26428622 |
10 | 13010240 |
11 | 7386871 |
12 | 44350a8 |
13 | 2906a89 |
14 | 1a294ac |
15 | 121ed45 |
hex | c68540 |
13010240 has 56 divisors (see below), whose sum is σ = 31348680. Its totient is φ = 5142528.
The previous prime is 13010213. The next prime is 13010293. The reversal of 13010240 is 4201031.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 2408704 + 10601536 = 1552^2 + 3256^2 .
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, 34694 + ... + 35066.
Almost surely, 213010240 is an apocalyptic number.
13010240 is a gapful number since it is divisible by the number (10) 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 13010240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15674340).
13010240 is an abundant number, since it is smaller than the sum of its proper divisors (18338440).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13010240 is a wasteful number, since it uses less digits than its factorization.
13010240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 499 (or 489 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 13010240 is about 3606.9710284392. The cubic root of 13010240 is about 235.1951901773.
Adding to 13010240 its reverse (4201031), we get a palindrome (17211271).
The spelling of 13010240 in words is "thirteen million, ten thousand, two hundred forty".
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