Base | Representation |
---|---|
bin | 101111100110000110… |
… | …0010000001101101001 |
3 | 100202211012011120210100 |
4 | 1133030030100031221 |
5 | 3133311230341014 |
6 | 114542111140013 |
7 | 10245600524130 |
oct | 1371414201551 |
9 | 322735146710 |
10 | 102210012009 |
11 | 3a38a983906 |
12 | 17985b14609 |
13 | 983b638261 |
14 | 4d38786917 |
15 | 29d3283009 |
hex | 17cc310369 |
102210012009 has 48 divisors (see below), whose sum is σ = 173651512320. Its totient is φ = 56707931520.
The previous prime is 102210012007. The next prime is 102210012031. The reversal of 102210012009 is 900210012201.
It is not a de Polignac number, because 102210012009 - 21 = 102210012007 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 102210011982 and 102210012000.
It is not an unprimeable number, because it can be changed into a prime (102210012007) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1070779 + ... + 1162319.
It is an arithmetic number, because the mean of its divisors is an integer number (3617739840).
Almost surely, 2102210012009 is an apocalyptic number.
It is an amenable number.
102210012009 is a deficient number, since it is larger than the sum of its proper divisors (71441500311).
102210012009 is a wasteful number, since it uses less digits than its factorization.
102210012009 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 92070 (or 92067 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
The spelling of 102210012009 in words is "one hundred two billion, two hundred ten million, twelve thousand, nine".
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