Base | Representation |
---|---|
bin | 11011111101010110… |
… | …000110000000100010 |
3 | 2212111011100202100220 |
4 | 123331112012000202 |
5 | 442440134344302 |
6 | 21442513423510 |
7 | 2111633516643 |
oct | 337526060042 |
9 | 85434322326 |
10 | 30020231202 |
11 | 11805702035 |
12 | 599986ab96 |
13 | 2aa5629820 |
14 | 164add36ca |
15 | baa7c34bc |
hex | 6fd586022 |
30020231202 has 64 divisors (see below), whose sum is σ = 66039442560. Its totient is φ = 9041140224.
The previous prime is 30020231191. The next prime is 30020231207. The reversal of 30020231202 is 20213202003.
It is not an unprimeable number, because it can be changed into a prime (30020231207) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1058268 + ... + 1086264.
It is an arithmetic number, because the mean of its divisors is an integer number (1031866290).
Almost surely, 230020231202 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30020231202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33019721280).
30020231202 is an abundant number, since it is smaller than the sum of its proper divisors (36019211358).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30020231202 is a wasteful number, since it uses less digits than its factorization.
30020231202 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28307.
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 30020231202 its reverse (20213202003), we get a palindrome (50233433205).
The spelling of 30020231202 in words is "thirty billion, twenty million, two hundred thirty-one thousand, two hundred two".
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