Base | Representation |
---|---|
bin | 11100000000011001… |
… | …001011010101000000 |
3 | 2212121201120221002011 |
4 | 130000121023111000 |
5 | 443041232333242 |
6 | 21451541502304 |
7 | 2113124302531 |
oct | 340031132500 |
9 | 85551527064 |
10 | 30071371072 |
11 | 11831561196 |
12 | 59b2a11994 |
13 | 2ab30c39c2 |
14 | 1653b06688 |
15 | bb0025d17 |
hex | 70064b540 |
30071371072 has 14 divisors (see below), whose sum is σ = 59672877098. Its totient is φ = 15035685504.
The previous prime is 30071371069. The next prime is 30071371087. The reversal of 30071371072 is 27017317003.
It can be written as a sum of positive squares in only one way, i.e., 27415411776 + 2655959296 = 165576^2 + 51536^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234932523 + ... + 234932650.
Almost surely, 230071371072 is an apocalyptic number.
30071371072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
30071371072 is a deficient number, since it is larger than the sum of its proper divisors (29601506026).
30071371072 is an equidigital number, since it uses as much as digits as its factorization.
30071371072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 469865185 (or 469865175 counting only the distinct ones).
The product of its (nonzero) digits is 6174, while the sum is 31.
Adding to 30071371072 its reverse (27017317003), we get a palindrome (57088688075).
The spelling of 30071371072 in words is "thirty billion, seventy-one million, three hundred seventy-one thousand, seventy-two".
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