Base | Representation |
---|---|
bin | 111001011111… |
… | …1001011100010 |
3 | 2002201102200220 |
4 | 1302333023202 |
5 | 30204040302 |
6 | 2554023510 |
7 | 514133025 |
oct | 162771342 |
9 | 62642626 |
10 | 30143202 |
11 | 16019041 |
12 | a117b96 |
13 | 632521b |
14 | 40091bc |
15 | 29a64bc |
hex | 1cbf2e2 |
30143202 has 32 divisors (see below), whose sum is σ = 63497088. Its totient is φ = 9520896.
The previous prime is 30143189. The next prime is 30143207. The reversal of 30143202 is 20234103.
It is a super-2 number, since 2×301432022 = 1817225253625608, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30143207) 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, 14628 + ... + 16560.
It is an arithmetic number, because the mean of its divisors is an integer number (1984284).
Almost surely, 230143202 is an apocalyptic number.
30143202 is an abundant number, since it is smaller than the sum of its proper divisors (33353886).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30143202 is a wasteful number, since it uses less digits than its factorization.
30143202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2074.
The product of its (nonzero) digits is 144, while the sum is 15.
The square root of 30143202 is about 5490.2825063925. The cubic root of 30143202 is about 311.2168681367.
Adding to 30143202 its reverse (20234103), we get a palindrome (50377305).
Subtracting from 30143202 its reverse (20234103), we obtain a palindrome (9909099).
It can be divided in two parts, 3014 and 3202, that added together give a triangular number (6216 = T111).
The spelling of 30143202 in words is "thirty million, one hundred forty-three thousand, two hundred two".
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