Base | Representation |
---|---|
bin | 11000011101010101… |
… | …11010011010010011 |
3 | 1020220010100112212100 |
4 | 30032222322122103 |
5 | 203343021012321 |
6 | 10010551331443 |
7 | 643253634513 |
oct | 141652723223 |
9 | 36803315770 |
10 | 13131032211 |
11 | 5629141940 |
12 | 2665680b83 |
13 | 131358c25b |
14 | 8c7d17843 |
15 | 51cbd6326 |
hex | 30eaba693 |
13131032211 has 24 divisors (see below), whose sum is σ = 20696388336. Its totient is φ = 7956253440.
The previous prime is 13131032191. The next prime is 13131032219. The reversal of 13131032211 is 11223013131.
13131032211 is a `hidden beast` number, since 1 + 31 + 310 + 322 + 1 + 1 = 666.
It is not a de Polignac number, because 13131032211 - 25 = 13131032179 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13131032219) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 460671 + ... + 488343.
It is an arithmetic number, because the mean of its divisors is an integer number (862349514).
Almost surely, 213131032211 is an apocalyptic number.
13131032211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
13131032211 is a deficient number, since it is larger than the sum of its proper divisors (7565356125).
13131032211 is a wasteful number, since it uses less digits than its factorization.
13131032211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32483 (or 32480 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 13131032211 its reverse (11223013131), we get a palindrome (24354045342).
The spelling of 13131032211 in words is "thirteen billion, one hundred thirty-one million, thirty-two thousand, two hundred eleven".
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