Base | Representation |
---|---|
bin | 10101011100000110… |
… | …011010000100111110 |
3 | 2012102022020011220110 |
4 | 111130012122010332 |
5 | 334121111120110 |
6 | 14324130530450 |
7 | 1443312641010 |
oct | 253406320476 |
9 | 65368204813 |
10 | 23020020030 |
11 | 9843223847 |
12 | 4565436a26 |
13 | 222b27b737 |
14 | 11854201b0 |
15 | 8eae66a20 |
hex | 55c19a13e |
23020020030 has 32 divisors (see below), whose sum is σ = 63140626944. Its totient is φ = 5261718816.
The previous prime is 23020020007. The next prime is 23020020109. The reversal of 23020020030 is 3002002032.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 23020019988 and 23020020015.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 54809362 + ... + 54809781.
It is an arithmetic number, because the mean of its divisors is an integer number (1973144592).
Almost surely, 223020020030 is an apocalyptic number.
23020020030 is an abundant number, since it is smaller than the sum of its proper divisors (40120606914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23020020030 is a wasteful number, since it uses less digits than its factorization.
23020020030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109619160.
The product of its (nonzero) digits is 72, while the sum is 12.
Adding to 23020020030 its reverse (3002002032), we get a palindrome (26022022062).
The spelling of 23020020030 in words is "twenty-three billion, twenty million, twenty thousand, thirty".
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