Base | Representation |
---|---|
bin | 11011111101111111… |
… | …010101010111101110 |
3 | 2212111220201000000221 |
4 | 123331333111113232 |
5 | 443000421321110 |
6 | 21443541241554 |
7 | 2112124434253 |
oct | 337577252756 |
9 | 85456630027 |
10 | 30031042030 |
11 | 11810816400 |
12 | 59a14032ba |
13 | 2aa7943472 |
14 | 164c60942a |
15 | bab70b7da |
hex | 6fdfd55ee |
30031042030 has 24 divisors (see below), whose sum is σ = 59416791336. Its totient is φ = 10920378480.
The previous prime is 30031041991. The next prime is 30031042031. The reversal of 30031042030 is 3024013003.
It is a junction number, because it is equal to n+sod(n) for n = 30031041995 and 30031042013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30031042031) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12408312 + ... + 12410731.
It is an arithmetic number, because the mean of its divisors is an integer number (2475699639).
Almost surely, 230031042030 is an apocalyptic number.
30031042030 is a deficient number, since it is larger than the sum of its proper divisors (29385749306).
30031042030 is a wasteful number, since it uses less digits than its factorization.
30031042030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24819072 (or 24819061 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 16.
Adding to 30031042030 its reverse (3024013003), we get a palindrome (33055055033).
The spelling of 30031042030 in words is "thirty billion, thirty-one million, forty-two thousand, thirty".
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