Base | Representation |
---|---|
bin | 111001101000… |
… | …0001110100110 |
3 | 2002211222111010 |
4 | 1303100032212 |
5 | 30213304110 |
6 | 2555323050 |
7 | 514543431 |
oct | 163201646 |
9 | 62758433 |
10 | 30213030 |
11 | 16066551 |
12 | a150486 |
13 | 634ac43 |
14 | 4026818 |
15 | 29bc020 |
hex | 1cd03a6 |
30213030 has 32 divisors (see below), whose sum is σ = 75665664. Its totient is φ = 7706336.
The previous prime is 30213013. The next prime is 30213037. The reversal of 30213030 is 3031203.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 30212997 and 30213015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30213037) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21204 + ... + 22583.
It is an arithmetic number, because the mean of its divisors is an integer number (2364552).
Almost surely, 230213030 is an apocalyptic number.
30213030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30213030 is an abundant number, since it is smaller than the sum of its proper divisors (45452634).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30213030 is a wasteful number, since it uses less digits than its factorization.
30213030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43820.
The product of its (nonzero) digits is 54, while the sum is 12.
The square root of 30213030 is about 5496.6380633984. The cubic root of 30213030 is about 311.4569984793.
Adding to 30213030 its reverse (3031203), we get a palindrome (33244233).
The spelling of 30213030 in words is "thirty million, two hundred thirteen thousand, thirty".
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