Base | Representation |
---|---|
bin | 11011111101100001… |
… | …000101010101010100 |
3 | 2212111100210010002212 |
4 | 123331201011111110 |
5 | 442441404041040 |
6 | 21443055252552 |
7 | 2112000145556 |
oct | 337541052524 |
9 | 85440703085 |
10 | 30023112020 |
11 | 1180729a480 |
12 | 599a81a158 |
13 | 2aa60c7b55 |
14 | 164b5434d6 |
15 | baab91d65 |
hex | 6fd845554 |
30023112020 has 48 divisors (see below), whose sum is σ = 70639164288. Its totient is φ = 10622424960.
The previous prime is 30023112019. The next prime is 30023112061. The reversal of 30023112020 is 2021132003.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 30023111986 and 30023112004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1836032 + ... + 1852311.
It is an arithmetic number, because the mean of its divisors is an integer number (1471649256).
Almost surely, 230023112020 is an apocalyptic number.
It is an amenable number.
30023112020 is an abundant number, since it is smaller than the sum of its proper divisors (40616052268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30023112020 is a wasteful number, since it uses less digits than its factorization.
30023112020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3688400 (or 3688398 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 30023112020 its reverse (2021132003), we get a palindrome (32044244023).
The spelling of 30023112020 in words is "thirty billion, twenty-three million, one hundred twelve thousand, twenty".
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