Base | Representation |
---|---|
bin | 110001110010… |
… | …001010001001 |
3 | 220120000221001 |
4 | 301302022021 |
5 | 11320104010 |
6 | 1143415001 |
7 | 215633056 |
oct | 61621211 |
9 | 26500831 |
10 | 13050505 |
11 | 7404046 |
12 | 4454461 |
13 | 291c1c0 |
14 | 1a3a02d |
15 | 122bc3a |
hex | c72289 |
13050505 has 32 divisors (see below), whose sum is σ = 17781120. Its totient is φ = 9131520.
The previous prime is 13050503. The next prime is 13050533. The reversal of 13050505 is 50505031.
It is not a de Polignac number, because 13050505 - 21 = 13050503 is a prime.
It is a super-4 number, since 4×130505054 (a number of 30 digits) contains 4444 as substring.
It is not an unprimeable number, because it can be changed into a prime (13050503) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157194 + ... + 157276.
It is an arithmetic number, because the mean of its divisors is an integer number (555660).
Almost surely, 213050505 is an apocalyptic number.
It is an amenable number.
13050505 is a deficient number, since it is larger than the sum of its proper divisors (4730615).
13050505 is a wasteful number, since it uses less digits than its factorization.
13050505 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 201.
The product of its (nonzero) digits is 375, while the sum is 19.
The square root of 13050505 is about 3612.5482695737. The cubic root of 13050505 is about 235.4375731383.
Adding to 13050505 its reverse (50505031), we get a palindrome (63555536).
The spelling of 13050505 in words is "thirteen million, fifty thousand, five hundred five".
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