Base | Representation |
---|---|
bin | 11000010001011100… |
… | …00101100111000111 |
3 | 1020122011111121111100 |
4 | 30020232011213013 |
5 | 203141441414343 |
6 | 5553023511143 |
7 | 640632245205 |
oct | 141056054707 |
9 | 36564447440 |
10 | 13031201223 |
11 | 5587856397 |
12 | 26381584b3 |
13 | 12c89a7671 |
14 | 8b896c075 |
15 | 5140669d3 |
hex | 308b859c7 |
13031201223 has 12 divisors (see below), whose sum is σ = 18823913680. Its totient is φ = 8686974816.
The previous prime is 13031201179. The next prime is 13031201231. The reversal of 13031201223 is 32210213031.
13031201223 is a `hidden beast` number, since 130 + 312 + 0 + 1 + 223 = 666.
It is not a de Polignac number, because 13031201223 - 26 = 13031201159 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13031201196 and 13031201205.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13031201263) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202515 + ... + 258987.
Almost surely, 213031201223 is an apocalyptic number.
13031201223 is a deficient number, since it is larger than the sum of its proper divisors (5792712457).
13031201223 is a wasteful number, since it uses less digits than its factorization.
13031201223 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82118 (or 82115 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 13031201223 its reverse (32210213031), we get a palindrome (45241414254).
The spelling of 13031201223 in words is "thirteen billion, thirty-one million, two hundred one thousand, two hundred twenty-three".
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