Base | Representation |
---|---|
bin | 11000001111010001… |
… | …01010000000011101 |
3 | 1020120220020220102011 |
4 | 30013220222000131 |
5 | 203122312001341 |
6 | 5551133431221 |
7 | 640321451104 |
oct | 140750520035 |
9 | 36526226364 |
10 | 13013000221 |
11 | 5578554741 |
12 | 263203b511 |
13 | 12c4ca4040 |
14 | 8b639103b |
15 | 51266db81 |
hex | 307a2a01d |
13013000221 has 16 divisors (see below), whose sum is σ = 14258675200. Its totient is φ = 11803501440.
The previous prime is 13013000213. The next prime is 13013000227. The reversal of 13013000221 is 12200031031.
It is a cyclic number.
It is not a de Polignac number, because 13013000221 - 23 = 13013000213 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13013000227) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231880 + ... + 282478.
It is an arithmetic number, because the mean of its divisors is an integer number (891167200).
Almost surely, 213013000221 is an apocalyptic number.
It is an amenable number.
13013000221 is a deficient number, since it is larger than the sum of its proper divisors (1245674979).
13013000221 is a wasteful number, since it uses less digits than its factorization.
13013000221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50956.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 13013000221 its reverse (12200031031), we get a palindrome (25213031252).
The spelling of 13013000221 in words is "thirteen billion, thirteen million, two hundred twenty-one", and thus it is an aban number.
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