Base | Representation |
---|---|
bin | 11000010011101110… |
… | …10100111100001000 |
3 | 1020200111122000222102 |
4 | 30021313110330020 |
5 | 203211400304040 |
6 | 5554551212532 |
7 | 641254400633 |
oct | 141167247410 |
9 | 36614560872 |
10 | 13050400520 |
11 | 559767a083 |
12 | 2642677148 |
13 | 12cc96a4b1 |
14 | 8bb328c1a |
15 | 515aaa515 |
hex | 309dd4f08 |
13050400520 has 64 divisors (see below), whose sum is σ = 29708208000. Its totient is φ = 5159096320.
The previous prime is 13050400513. The next prime is 13050400547. The reversal of 13050400520 is 2500405031.
13050400520 is nontrivially palindromic in base 15.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 13050400492 and 13050400501.
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, 1918325 + ... + 1925115.
It is an arithmetic number, because the mean of its divisors is an integer number (464190750).
Almost surely, 213050400520 is an apocalyptic number.
13050400520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13050400520 is an abundant number, since it is smaller than the sum of its proper divisors (16657807480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13050400520 is a wasteful number, since it uses less digits than its factorization.
13050400520 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7358 (or 7354 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 20.
Adding to 13050400520 its reverse (2500405031), we get a palindrome (15550805551).
The spelling of 13050400520 in words is "thirteen billion, fifty million, four hundred thousand, five hundred twenty".
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