Base | Representation |
---|---|
bin | 1101101111110101110111… |
… | …10101100100100111000110 |
3 | 10222001001211111211212210220 |
4 | 12313322323311210213012 |
5 | 12430301324042242410 |
6 | 144143553455125210 |
7 | 6240061420313004 |
oct | 667727365444706 |
9 | 128031744755726 |
10 | 30231131212230 |
11 | 96a5a50499823 |
12 | 3482bb4813806 |
13 | 13b3a252b1b60 |
14 | 7672a1c1ba74 |
15 | 3765ab326070 |
hex | 1b7ebbd649c6 |
30231131212230 has 32 divisors (see below), whose sum is σ = 78135846826464. Its totient is φ = 7441509221376.
The previous prime is 30231131212213. The next prime is 30231131212231. The reversal of 30231131212230 is 3221213113203.
It is a self number, because there is not a number n which added to its sum of digits gives 30231131212230.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231131212231) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38757860139 + ... + 38757860918.
It is an arithmetic number, because the mean of its divisors is an integer number (2441745213327).
Almost surely, 230231131212230 is an apocalyptic number.
30231131212230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30231131212230 is an abundant number, since it is smaller than the sum of its proper divisors (47904715614234).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30231131212230 is a wasteful number, since it uses less digits than its factorization.
30231131212230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 77515721080.
The product of its (nonzero) digits is 1296, while the sum is 24.
Adding to 30231131212230 its reverse (3221213113203), we get a palindrome (33452344325433).
The spelling of 30231131212230 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred twelve thousand, two hundred thirty".
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