Base | Representation |
---|---|
bin | 111100110011110… |
… | …000010001011110 |
3 | 2122002200112100022 |
4 | 330303300101132 |
5 | 4042132400110 |
6 | 245122232142 |
7 | 34165362053 |
oct | 7463602136 |
9 | 2562615308 |
10 | 1020200030 |
11 | 483970423 |
12 | 2457b5652 |
13 | 133490675 |
14 | 996c902a |
15 | 5e871755 |
hex | 3ccf045e |
1020200030 has 16 divisors (see below), whose sum is σ = 1846977984. Its totient is φ = 405720480.
The previous prime is 1020200023. The next prime is 1020200033. The reversal of 1020200030 is 300020201.
It is a junction number, because it is equal to n+sod(n) for n = 1020199990 and 1020200017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1020200033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293126 + ... + 296585.
It is an arithmetic number, because the mean of its divisors is an integer number (115436124).
Almost surely, 21020200030 is an apocalyptic number.
1020200030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1020200030 is a deficient number, since it is larger than the sum of its proper divisors (826777954).
1020200030 is a wasteful number, since it uses less digits than its factorization.
1020200030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 589891.
The product of its (nonzero) digits is 12, while the sum is 8.
The square root of 1020200030 is about 31940.5702829489. The cubic root of 1020200030 is about 1006.6885074619.
Adding to 1020200030 its reverse (300020201), we get a palindrome (1320220231).
The spelling of 1020200030 in words is "one billion, twenty million, two hundred thousand, thirty".
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