Base | Representation |
---|---|
bin | 1001100110001001100111… |
… | …00110110010001100000111 |
3 | 2202201100001110101122001101 |
4 | 10303010303212302030013 |
5 | 10231213434233132221 |
6 | 112514050550440531 |
7 | 4305400140411130 |
oct | 463046346621407 |
9 | 82640043348041 |
10 | 21102040130311 |
11 | 67a6363585138 |
12 | 2449872663147 |
13 | ba0bb59472ba |
14 | 52d4b6668c87 |
15 | 268da49c4d91 |
hex | 1331339b2307 |
21102040130311 has 8 divisors (see below), whose sum is σ = 25385912938880. Its totient is φ = 17135491233528.
The previous prime is 21102040130261. The next prime is 21102040130333. The reversal of 21102040130311 is 11303104020112.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 21102040130311 - 217 = 21102039999239 is a prime.
It is a super-2 number, since 2×211020401303112 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21102040130011) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79330977801 + ... + 79330978066.
It is an arithmetic number, because the mean of its divisors is an integer number (3173239117360).
Almost surely, 221102040130311 is an apocalyptic number.
21102040130311 is a deficient number, since it is larger than the sum of its proper divisors (4283872808569).
21102040130311 is a wasteful number, since it uses less digits than its factorization.
21102040130311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158661955893.
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 21102040130311 its reverse (11303104020112), we get a palindrome (32405144150423).
The spelling of 21102040130311 in words is "twenty-one trillion, one hundred two billion, forty million, one hundred thirty thousand, three hundred eleven".
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