Base | Representation |
---|---|
bin | 10010101110001011… |
… | …111011000100011110 |
3 | 1220212221220002212020 |
4 | 102232023323010132 |
5 | 312132132332202 |
6 | 13122420321010 |
7 | 1311103065300 |
oct | 225613730436 |
9 | 56787802766 |
10 | 20102230302 |
11 | 8586204180 |
12 | 3a90243166 |
13 | 1b8491c63b |
14 | d89ad7970 |
15 | 7c9c115bc |
hex | 4ae2fb11e |
20102230302 has 96 divisors (see below), whose sum is σ = 52666205184. Its totient is φ = 5052902400.
The previous prime is 20102230273. The next prime is 20102230307. The reversal of 20102230302 is 20303220102.
It is a super-2 number, since 2×201022303022 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20102230307) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3 + ... + 200510.
It is an arithmetic number, because the mean of its divisors is an integer number (548606304).
Almost surely, 220102230302 is an apocalyptic number.
20102230302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 20102230302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26333102592).
20102230302 is an abundant number, since it is smaller than the sum of its proper divisors (32563974882).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20102230302 is a wasteful number, since it uses less digits than its factorization.
20102230302 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 200574 (or 200567 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 20102230302 its reverse (20303220102), we get a palindrome (40405450404).
The spelling of 20102230302 in words is "twenty billion, one hundred two million, two hundred thirty thousand, three hundred two".
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