Base | Representation |
---|---|
bin | 11100001001111011… |
… | …010001001101111000 |
3 | 2220000212112022111002 |
4 | 130021323101031320 |
5 | 443403203144112 |
6 | 21515453424132 |
7 | 2120105556500 |
oct | 341173211570 |
9 | 86025468432 |
10 | 30231303032 |
11 | 11903867467 |
12 | 5a3849b048 |
13 | 2b0a28c4b8 |
14 | 166b058a00 |
15 | bbe0b81c2 |
hex | 709ed1378 |
30231303032 has 96 divisors (see below), whose sum is σ = 67852170720. Its totient is φ = 12585081600.
The previous prime is 30231303029. The next prime is 30231303041. The reversal of 30231303032 is 23030313203.
It is a super-2 number, since 2×302313030322 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30231302995 and 30231303013.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2091173 + ... + 2105579.
It is an arithmetic number, because the mean of its divisors is an integer number (706793445).
Almost surely, 230231303032 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30231303032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33926085360).
30231303032 is an abundant number, since it is smaller than the sum of its proper divisors (37620867688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30231303032 is a wasteful number, since it uses less digits than its factorization.
30231303032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14581 (or 14570 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 20.
Adding to 30231303032 its reverse (23030313203), we get a palindrome (53261616235).
The spelling of 30231303032 in words is "thirty billion, two hundred thirty-one million, three hundred three thousand, thirty-two".
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