Base | Representation |
---|---|
bin | 10011100101011111… |
… | …100011001101011111 |
3 | 2000021121212220102211 |
4 | 103211133203031133 |
5 | 321032202403320 |
6 | 13354444301251 |
7 | 1343101043005 |
oct | 234537431537 |
9 | 60247786384 |
10 | 21030122335 |
11 | 8a11a571a2 |
12 | 40aab41827 |
13 | 1ca1c30691 |
14 | 1037034a75 |
15 | 8313ec55a |
hex | 4e57e335f |
21030122335 has 32 divisors (see below), whose sum is σ = 26793980928. Its totient is φ = 15813557760.
The previous prime is 21030122327. The next prime is 21030122339. The reversal of 21030122335 is 53322103012.
It is not a de Polignac number, because 21030122335 - 23 = 21030122327 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21030122339) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544919 + ... + 1558471.
It is an arithmetic number, because the mean of its divisors is an integer number (837311904).
Almost surely, 221030122335 is an apocalyptic number.
21030122335 is a deficient number, since it is larger than the sum of its proper divisors (5763858593).
21030122335 is a wasteful number, since it uses less digits than its factorization.
21030122335 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13815.
The product of its (nonzero) digits is 1080, while the sum is 22.
Adding to 21030122335 its reverse (53322103012), we get a palindrome (74352225347).
The spelling of 21030122335 in words is "twenty-one billion, thirty million, one hundred twenty-two thousand, three hundred thirty-five".
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