Base | Representation |
---|---|
bin | 11011111101111100… |
… | …001111101000111001 |
3 | 2212111212011212001022 |
4 | 123331330033220321 |
5 | 443000214411441 |
6 | 21443512032225 |
7 | 2112114522101 |
oct | 337574175071 |
9 | 85455155038 |
10 | 30030232121 |
11 | 1181031295a |
12 | 59a1092675 |
13 | 2aa771b926 |
14 | 164c478201 |
15 | bab5eb84b |
hex | 6fdf0fa39 |
30030232121 has 8 divisors (see below), whose sum is σ = 30097701504. Its totient is φ = 29962801440.
The previous prime is 30030232117. The next prime is 30030232147. The reversal of 30030232121 is 12123203003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30030232121 - 22 = 30030232117 is a prime.
It is a super-2 number, since 2×300302321212 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30030232121.
It is not an unprimeable number, because it can be changed into a prime (30030232721) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996796 + ... + 2011778.
It is an arithmetic number, because the mean of its divisors is an integer number (3762212688).
Almost surely, 230030232121 is an apocalyptic number.
It is an amenable number.
30030232121 is a deficient number, since it is larger than the sum of its proper divisors (67469383).
30030232121 is a wasteful number, since it uses less digits than its factorization.
30030232121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19351.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 30030232121 its reverse (12123203003), we get a palindrome (42153435124).
The spelling of 30030232121 in words is "thirty billion, thirty million, two hundred thirty-two thousand, one hundred twenty-one".
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