Base | Representation |
---|---|
bin | 10001101011100101000… |
… | …101001111010011001101 |
3 | 11022011012010021011100212 |
4 | 101223211011033103031 |
5 | 124401332134231300 |
6 | 2330101355532205 |
7 | 153532300505012 |
oct | 21534505172315 |
9 | 4264163234325 |
10 | 1215024133325 |
11 | 42931a4a1902 |
12 | 17759115a065 |
13 | 8a765133622 |
14 | 42b43a31709 |
15 | 21913bba935 |
hex | 11ae514f4cd |
1215024133325 has 12 divisors (see below), whose sum is σ = 1506799618548. Its totient is φ = 971909827200.
The previous prime is 1215024133307. The next prime is 1215024133363. The reversal of 1215024133325 is 5233314205121.
It can be written as a sum of positive squares in 6 ways, for example, as 156919769161 + 1058104364164 = 396131^2 + 1028642^2 .
It is not a de Polignac number, because 1215024133325 - 212 = 1215024129229 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1215024133291 and 1215024133300.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2510216 + ... + 2954865.
It is an arithmetic number, because the mean of its divisors is an integer number (125566634879).
Almost surely, 21215024133325 is an apocalyptic number.
It is an amenable number.
1215024133325 is a deficient number, since it is larger than the sum of its proper divisors (291775485223).
1215024133325 is an equidigital number, since it uses as much as digits as its factorization.
1215024133325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5473984 (or 5473979 counting only the distinct ones).
The product of its (nonzero) digits is 21600, while the sum is 32.
Adding to 1215024133325 its reverse (5233314205121), we get a palindrome (6448338338446).
The spelling of 1215024133325 in words is "one trillion, two hundred fifteen billion, twenty-four million, one hundred thirty-three thousand, three hundred twenty-five".
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