Base | Representation |
---|---|
bin | 10011110101100110… |
… | …010100001001011101 |
3 | 2000222110022221011220 |
4 | 103311212110021131 |
5 | 322110341043401 |
6 | 13441340003553 |
7 | 1352561553450 |
oct | 236546241135 |
9 | 60873287156 |
10 | 21300331101 |
11 | 9040533025 |
12 | 41655305b9 |
13 | 2015bca51a |
14 | 1060c91497 |
15 | 849ec4336 |
hex | 4f599425d |
21300331101 has 16 divisors (see below), whose sum is σ = 34366921344. Its totient is φ = 11455640064.
The previous prime is 21300331081. The next prime is 21300331109. The reversal of 21300331101 is 10113300312.
It is not a de Polignac number, because 21300331101 - 25 = 21300331069 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (21300331109) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29832040 + ... + 29832753.
It is an arithmetic number, because the mean of its divisors is an integer number (2147932584).
Almost surely, 221300331101 is an apocalyptic number.
21300331101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
21300331101 is a deficient number, since it is larger than the sum of its proper divisors (13066590243).
21300331101 is a wasteful number, since it uses less digits than its factorization.
21300331101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59664820.
The product of its (nonzero) digits is 54, while the sum is 15.
Adding to 21300331101 its reverse (10113300312), we get a palindrome (31413631413).
The spelling of 21300331101 in words is "twenty-one billion, three hundred million, three hundred thirty-one thousand, one hundred one".
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