Base | Representation |
---|---|
bin | 1101101111110101110111… |
… | …10101100100100101000110 |
3 | 10222001001211111211212122011 |
4 | 12313322323311210211012 |
5 | 12430301324042241402 |
6 | 144143553455124434 |
7 | 6240061420312432 |
oct | 667727365444506 |
9 | 128031744755564 |
10 | 30231131212102 |
11 | 96a5a50499717 |
12 | 3482bb481371a |
13 | 13b3a252b1a92 |
14 | 7672a1c1b9c2 |
15 | 3765ab325ed7 |
hex | 1b7ebbd64946 |
30231131212102 has 64 divisors (see below), whose sum is σ = 50727224021760. Its totient is φ = 13428143539200.
The previous prime is 30231131212091. The next prime is 30231131212127. The reversal of 30231131212102 is 20121213113203.
It is a super-2 number, since 2×302311312121022 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192100533 + ... + 192257839.
It is an arithmetic number, because the mean of its divisors is an integer number (792612875340).
Almost surely, 230231131212102 is an apocalyptic number.
30231131212102 is a deficient number, since it is larger than the sum of its proper divisors (20496092809658).
30231131212102 is a wasteful number, since it uses less digits than its factorization.
30231131212102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 158437.
The product of its (nonzero) digits is 432, while the sum is 22.
Adding to 30231131212102 its reverse (20121213113203), we get a palindrome (50352344325305).
The spelling of 30231131212102 in words is "thirty trillion, two hundred thirty-one billion, one hundred thirty-one million, two hundred twelve thousand, one hundred two".
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