Base | Representation |
---|---|
bin | 1001101101101100… |
… | …01001001010000000 |
3 | 111110110012001202212 |
4 | 10312312021022000 |
5 | 41140033131430 |
6 | 2221254201252 |
7 | 243143606225 |
oct | 46666111200 |
9 | 14413161685 |
10 | 5215130240 |
11 | 22368945a1 |
12 | 1016653228 |
13 | 6515b28a8 |
14 | 3768a194c |
15 | 207c9db95 |
hex | 136d89280 |
5215130240 has 32 divisors (see below), whose sum is σ = 12467422260. Its totient is φ = 2086051840.
The previous prime is 5215130209. The next prime is 5215130243. The reversal of 5215130240 is 420315125.
It can be written as a sum of positive squares in 2 ways, for example, as 5123123776 + 92006464 = 71576^2 + 9592^2 .
It is a tau number, because it is divible by the number of its divisors (32).
It is not an unprimeable number, because it can be changed into a prime (5215130243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4073681 + ... + 4074960.
Almost surely, 25215130240 is an apocalyptic number.
It is an amenable number.
5215130240 is an abundant number, since it is smaller than the sum of its proper divisors (7252292020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5215130240 is an equidigital number, since it uses as much as digits as its factorization.
5215130240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8148660 (or 8148648 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 5215130240 is about 72215.8586461450. The cubic root of 5215130240 is about 1734.1568920068.
Adding to 5215130240 its reverse (420315125), we get a palindrome (5635445365).
The spelling of 5215130240 in words is "five billion, two hundred fifteen million, one hundred thirty thousand, two hundred forty".
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