Base | Representation |
---|---|
bin | 10011101011100001… |
… | …111100011001111000 |
3 | 2000112200111000021002 |
4 | 103223201330121320 |
5 | 321234120204422 |
6 | 13412503304132 |
7 | 1345441022255 |
oct | 235341743170 |
9 | 60480430232 |
10 | 21131413112 |
11 | 8a6414a487 |
12 | 4118a4b048 |
13 | 1cb9c06854 |
14 | 104668042c |
15 | 83a259692 |
hex | 4eb87c678 |
21131413112 has 64 divisors (see below), whose sum is σ = 40614890400. Its totient is φ = 10304870400.
The previous prime is 21131413109. The next prime is 21131413123.
21131413112 is nontrivially palindromic in base 10.
It is a super-2 number, since 2×211314131122 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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, 32863463 + ... + 32864105.
Almost surely, 221131413112 is an apocalyptic number.
It is an amenable number.
21131413112 is a deficient number, since it is larger than the sum of its proper divisors (19483477288).
21131413112 is a wasteful number, since it uses less digits than its factorization.
21131413112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1296 (or 1292 counting only the distinct ones).
The product of its digits is 144, while the sum is 20.
The spelling of 21131413112 in words is "twenty-one billion, one hundred thirty-one million, four hundred thirteen thousand, one hundred twelve".
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