Base | Representation |
---|---|
bin | 11100001110110011… |
… | …010110000111010100 |
3 | 2220020120110122022121 |
4 | 130032303112013110 |
5 | 444040124041040 |
6 | 21531535105324 |
7 | 2122121125612 |
oct | 341663260724 |
9 | 86216418277 |
10 | 30313112020 |
11 | 11945a637a4 |
12 | 5a5b972244 |
13 | 2b21204099 |
14 | 1677c726b2 |
15 | bc6377c4a |
hex | 70ecd61d4 |
30313112020 has 24 divisors (see below), whose sum is σ = 63662112864. Its totient is φ = 12124372896.
The previous prime is 30313111943. The next prime is 30313112023. The reversal of 30313112020 is 2021131303.
It is a junction number, because it is equal to n+sod(n) for n = 30313111985 and 30313112003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30313112023) 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, 280947 + ... + 373573.
It is an arithmetic number, because the mean of its divisors is an integer number (2652588036).
Almost surely, 230313112020 is an apocalyptic number.
It is an amenable number.
30313112020 is an abundant number, since it is smaller than the sum of its proper divisors (33349000844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30313112020 is a wasteful number, since it uses less digits than its factorization.
30313112020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108999 (or 108997 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 16.
Adding to 30313112020 its reverse (2021131303), we get a palindrome (32334243323).
The spelling of 30313112020 in words is "thirty billion, three hundred thirteen million, one hundred twelve thousand, twenty".
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