Base | Representation |
---|---|
bin | 1001001001110111011110… |
… | …01101011011010100000110 |
3 | 2122021102122100020011002212 |
4 | 10210323233031123110012 |
5 | 10114303202341222210 |
6 | 110451411111303422 |
7 | 4145234602660322 |
oct | 444735715332406 |
9 | 78242570204085 |
10 | 20130230023430 |
11 | 646120106617a |
12 | 231145937ab72 |
13 | b30370a253b7 |
14 | 4d84460c2982 |
15 | 24d977ed4805 |
hex | 124eef35b506 |
20130230023430 has 16 divisors (see below), whose sum is σ = 36234495802080. Its totient is φ = 8052073840512.
The previous prime is 20130230023427. The next prime is 20130230023447. The reversal of 20130230023430 is 3432003203102.
It is a junction number, because it is equal to n+sod(n) for n = 20130230023396 and 20130230023405.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954942 + ... + 6999438.
It is an arithmetic number, because the mean of its divisors is an integer number (2264655987630).
Almost surely, 220130230023430 is an apocalyptic number.
20130230023430 is a deficient number, since it is larger than the sum of its proper divisors (16104265778650).
20130230023430 is a wasteful number, since it uses less digits than its factorization.
20130230023430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4542223.
The product of its (nonzero) digits is 2592, while the sum is 23.
Adding to 20130230023430 its reverse (3432003203102), we get a palindrome (23562233226532).
The spelling of 20130230023430 in words is "twenty trillion, one hundred thirty billion, two hundred thirty million, twenty-three thousand, four hundred thirty".
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