Base | Representation |
---|---|
bin | 11011111100111011… |
… | …000000010100100111 |
3 | 2212110122222222101021 |
4 | 123330323000110213 |
5 | 442431330130043 |
6 | 21442101312011 |
7 | 2111516252542 |
oct | 337473002447 |
9 | 85418888337 |
10 | 30013130023 |
11 | 118016a1898 |
12 | 5997405607 |
13 | 2aa4011546 |
14 | 164a0a5859 |
15 | ba9d6e3ed |
hex | 6fcec0527 |
30013130023 has 4 divisors (see below), whose sum is σ = 30058536328. Its totient is φ = 29967723720.
The previous prime is 30013130009. The next prime is 30013130027. The reversal of 30013130023 is 32003131003.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30013130023 is a prime.
It is a super-4 number, since 4×300131300234 (a number of 43 digits) contains 4444 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30013129979 and 30013130006.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013130027) 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 3 ways as a sum of consecutive naturals, for example, 22702161 + ... + 22703482.
It is an arithmetic number, because the mean of its divisors is an integer number (7514634082).
Almost surely, 230013130023 is an apocalyptic number.
30013130023 is a deficient number, since it is larger than the sum of its proper divisors (45406305).
30013130023 is an equidigital number, since it uses as much as digits as its factorization.
30013130023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45406304.
The product of its (nonzero) digits is 162, while the sum is 16.
Adding to 30013130023 its reverse (32003131003), we get a palindrome (62016261026).
The spelling of 30013130023 in words is "thirty billion, thirteen million, one hundred thirty thousand, twenty-three".
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