Base | Representation |
---|---|
bin | 11000001111001011… |
… | …00110101001010101 |
3 | 1020120211202020202010 |
4 | 30013211212221111 |
5 | 203122110400041 |
6 | 5551104334433 |
7 | 640311606132 |
oct | 140745465125 |
9 | 36524666663 |
10 | 13012200021 |
11 | 5578058517 |
12 | 2631914419 |
13 | 12c4a83a52 |
14 | 8b6223589 |
15 | 512561a16 |
hex | 307966a55 |
13012200021 has 8 divisors (see below), whose sum is σ = 18103930560. Its totient is φ = 8297634752.
The previous prime is 13012200013. The next prime is 13012200031. The reversal of 13012200021 is 12000221031.
13012200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13012200021 - 23 = 13012200013 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13012200031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94291236 + ... + 94291373.
It is an arithmetic number, because the mean of its divisors is an integer number (2262991320).
Almost surely, 213012200021 is an apocalyptic number.
It is an amenable number.
13012200021 is a deficient number, since it is larger than the sum of its proper divisors (5091730539).
13012200021 is a wasteful number, since it uses less digits than its factorization.
13012200021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 188582635.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 13012200021 its reverse (12000221031), we get a palindrome (25012421052).
The spelling of 13012200021 in words is "thirteen billion, twelve million, two hundred thousand, twenty-one".
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