Base | Representation |
---|---|
bin | 11001001101000010… |
… | …01010101010100010 |
3 | 1021221000012122120121 |
4 | 30212201022222202 |
5 | 210202432134110 |
6 | 10114403030454 |
7 | 656212466101 |
oct | 144641125242 |
9 | 37830178517 |
10 | 13531130530 |
11 | 5813a74705 |
12 | 275766b42a |
13 | 1378436518 |
14 | 925106038 |
15 | 542db8cda |
hex | 32684aaa2 |
13531130530 has 8 divisors (see below), whose sum is σ = 24356034972. Its totient is φ = 5412452208.
The previous prime is 13531130519. The next prime is 13531130531. The reversal of 13531130530 is 3503113531.
It can be written as a sum of positive squares in 2 ways, for example, as 13488267321 + 42863209 = 116139^2 + 6547^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 13531130495 and 13531130504.
It is not an unprimeable number, because it can be changed into a prime (13531130531) 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, 676556517 + ... + 676556536.
Almost surely, 213531130530 is an apocalyptic number.
13531130530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13531130530 is a deficient number, since it is larger than the sum of its proper divisors (10824904442).
13531130530 is a wasteful number, since it uses less digits than its factorization.
13531130530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1353113060.
The product of its (nonzero) digits is 2025, while the sum is 25.
The spelling of 13531130530 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty thousand, five hundred thirty".
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