Base | Representation |
---|---|
bin | 10010111010000110… |
… | …000000111110011011 |
3 | 1221101212210212122100 |
4 | 102322012000332123 |
5 | 313034303230334 |
6 | 13154314254443 |
7 | 1316050136223 |
oct | 227206007633 |
9 | 57355725570 |
10 | 20302008219 |
11 | 8678a55299 |
12 | 3b27127423 |
13 | 1bb712981c |
14 | da845d083 |
15 | 7dc524c99 |
hex | 4ba180f9b |
20302008219 has 12 divisors (see below), whose sum is σ = 29355151176. Its totient is φ = 13520812992.
The previous prime is 20302008211. The next prime is 20302008229. The reversal of 20302008219 is 91280020302.
It is a happy number.
It is not a de Polignac number, because 20302008219 - 23 = 20302008211 is a prime.
It is a super-2 number, since 2×203020082192 (a number of 21 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 20302008192 and 20302008201.
It is not an unprimeable number, because it can be changed into a prime (20302008211) 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 11 ways as a sum of consecutive naturals, for example, 1145649 + ... + 1163234.
It is an arithmetic number, because the mean of its divisors is an integer number (2446262598).
Almost surely, 220302008219 is an apocalyptic number.
20302008219 is a deficient number, since it is larger than the sum of its proper divisors (9053142957).
20302008219 is a wasteful number, since it uses less digits than its factorization.
20302008219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2309866 (or 2309863 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The spelling of 20302008219 in words is "twenty billion, three hundred two million, eight thousand, two hundred nineteen".
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