| Base | Representation |
|---|---|
| bin | 1101101111110110001101… |
| … | …00011100010000000000000 |
| 3 | 10222001002022001012200121020 |
| 4 | 12313323012203202000000 |
| 5 | 12430302211111013240 |
| 6 | 144144023401225440 |
| 7 | 6240066032621556 |
| oct | 667730643420000 |
| 9 | 128032261180536 |
| 10 | 30231311032320 |
| 11 | 96a6032a49272 |
| 12 | 3483044a92280 |
| 13 | 13b3a53621b88 |
| 14 | 7672bba69bd6 |
| 15 | 3765bbee60d0 |
| hex | 1b7ec68e2000 |
30231311032320 has 448 divisors, whose sum is σ = 103053043860480. Its totient is φ = 7545318801408.
The previous prime is 30231311032313. The next prime is 30231311032327. The reversal of 30231311032320 is 2323011313203.
It is an interprime number because it is at equal distance from previous prime (30231311032313) and next prime (30231311032327).
It is a Harshad number since it is a multiple of its sum of digits (24).
It is not an unprimeable number, because it can be changed into a prime (30231311032327) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193703757 + ... + 193859763.
It is an arithmetic number, because the mean of its divisors is an integer number (230029115760).
Almost surely, 230231311032320 is an apocalyptic number.
30231311032320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30231311032320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51526521930240).
30231311032320 is an abundant number, since it is smaller than the sum of its proper divisors (72821732828160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30231311032320 is a wasteful number, since it uses less digits than its factorization.
30231311032320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 156143 (or 156119 counting only the distinct ones).
The product of its (nonzero) digits is 1944, while the sum is 24.
Adding to 30231311032320 its reverse (2323011313203), we get a palindrome (32554322345523).
The spelling of 30231311032320 in words is "thirty trillion, two hundred thirty-one billion, three hundred eleven million, thirty-two thousand, three hundred twenty".
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