Base | Representation |
---|---|
bin | 111001101001… |
… | …0001110010010 |
3 | 2002212101200210 |
4 | 1303102032102 |
5 | 30214034302 |
6 | 2555424550 |
7 | 514606314 |
oct | 163221622 |
9 | 62771623 |
10 | 30221202 |
11 | 16071700 |
12 | a155156 |
13 | 635188b |
14 | 40297b4 |
15 | 29be66c |
hex | 1cd2392 |
30221202 has 24 divisors (see below), whose sum is σ = 66438288. Its totient is φ = 9157720.
The previous prime is 30221173. The next prime is 30221207. The reversal of 30221202 is 20212203.
It is not an unprimeable number, because it can be changed into a prime (30221207) 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, 20088 + ... + 21539.
It is an arithmetic number, because the mean of its divisors is an integer number (2768262).
Almost surely, 230221202 is an apocalyptic number.
30221202 is an abundant number, since it is smaller than the sum of its proper divisors (36217086).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221202 is a wasteful number, since it uses less digits than its factorization.
30221202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41654 (or 41643 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 30221202 is about 5497.3813766192. The cubic root of 30221202 is about 311.4850768409.
Adding to 30221202 its reverse (20212203), we get a palindrome (50433405).
It can be divided in two parts, 3022 and 1202, that added together give a palindrome (4224).
The spelling of 30221202 in words is "thirty million, two hundred twenty-one thousand, two hundred two".
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