Base | Representation |
---|---|
bin | 11000001101101111… |
… | …10101011100100101 |
3 | 1020120000011200120202 |
4 | 30012313311130211 |
5 | 203111022431041 |
6 | 5545555240245 |
7 | 640104615422 |
oct | 140667653445 |
9 | 36500150522 |
10 | 13000202021 |
11 | 5571303214 |
12 | 26298a9085 |
13 | 12c2442941 |
14 | 8b47bcd49 |
15 | 511491a9b |
hex | 306df5725 |
13000202021 has 16 divisors (see below), whose sum is σ = 13995974400. Its totient is φ = 12036351168.
The previous prime is 13000202011. The next prime is 13000202023. The reversal of 13000202021 is 12020200031.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 13000202021 - 26 = 13000201957 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13000201993 and 13000202011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13000202023) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622871 + ... + 643403.
It is an arithmetic number, because the mean of its divisors is an integer number (874748400).
Almost surely, 213000202021 is an apocalyptic number.
It is an amenable number.
13000202021 is a deficient number, since it is larger than the sum of its proper divisors (995772379).
13000202021 is a wasteful number, since it uses less digits than its factorization.
13000202021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21308.
The product of its (nonzero) digits is 24, while the sum is 11.
Adding to 13000202021 its reverse (12020200031), we get a palindrome (25020402052).
The spelling of 13000202021 in words is "thirteen billion, two hundred two thousand, twenty-one".
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