Base | Representation |
---|---|
bin | 1101101111110101101010… |
… | …10101110011001110111100 |
3 | 10222001001112220202111212210 |
4 | 12313322311111303032330 |
5 | 12430301113142021340 |
6 | 144143535003100420 |
7 | 6240055625020023 |
oct | 667726525631674 |
9 | 128031486674783 |
10 | 30231022220220 |
11 | 96a59a4a16488 |
12 | 3482b84211710 |
13 | 13b3a08840543 |
14 | 7672915698ba |
15 | 3765a1997180 |
hex | 1b7eb55733bc |
30231022220220 has 48 divisors (see below), whose sum is σ = 84647495116800. Its totient is φ = 8061545649216.
The previous prime is 30231022220213. The next prime is 30231022220221. The reversal of 30231022220220 is 2202222013203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231022220221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6517581 + ... + 10145979.
It is an arithmetic number, because the mean of its divisors is an integer number (1763489481600).
Almost surely, 230231022220220 is an apocalyptic number.
30231022220220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30231022220220 is an abundant number, since it is smaller than the sum of its proper divisors (54416472896580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30231022220220 is a wasteful number, since it uses less digits than its factorization.
30231022220220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3767274 (or 3767272 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 21.
Adding to 30231022220220 its reverse (2202222013203), we get a palindrome (32433244233423).
The spelling of 30231022220220 in words is "thirty trillion, two hundred thirty-one billion, twenty-two million, two hundred twenty thousand, two hundred twenty".
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