Base | Representation |
---|---|
bin | 111001100110… |
… | …1000101001110 |
3 | 2002211022210210 |
4 | 1303031011032 |
5 | 30212401032 |
6 | 2555143250 |
7 | 514461030 |
oct | 163150516 |
9 | 62738723 |
10 | 30200142 |
11 | 160578a5 |
12 | a144b26 |
13 | 634510b |
14 | 4021c50 |
15 | 29b82cc |
hex | 1ccd14e |
30200142 has 32 divisors (see below), whose sum is σ = 70336512. Its totient is φ = 8465184.
The previous prime is 30200141. The next prime is 30200167. The reversal of 30200142 is 24100203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30200141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4558 + ... + 9009.
It is an arithmetic number, because the mean of its divisors is an integer number (2198016).
Almost surely, 230200142 is an apocalyptic number.
30200142 is an abundant number, since it is smaller than the sum of its proper divisors (40136370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30200142 is a wasteful number, since it uses less digits than its factorization.
30200142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13632.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 30200142 is about 5495.4655853713. The cubic root of 30200142 is about 311.4127060146.
Adding to 30200142 its reverse (24100203), we get a palindrome (54300345).
The spelling of 30200142 in words is "thirty million, two hundred thousand, one hundred forty-two".
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