Base | Representation |
---|---|
bin | 10001101011110101100… |
… | …101100010000101010101 |
3 | 11022011220102022012010110 |
4 | 101223311211202011111 |
5 | 124402414031044300 |
6 | 2330145050513233 |
7 | 153542202230400 |
oct | 21536545420525 |
9 | 4264812265113 |
10 | 1215301034325 |
11 | 429451829704 |
12 | 177649a35819 |
13 | 8a7aa604581 |
14 | 42b6c710d37 |
15 | 2192d165550 |
hex | 11af5962155 |
1215301034325 has 72 divisors (see below), whose sum is σ = 2341292076288. Its totient is φ = 554628318720.
The previous prime is 1215301034317. The next prime is 1215301034359. The reversal of 1215301034325 is 5234301035121.
It is not a de Polignac number, because 1215301034325 - 23 = 1215301034317 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1215301034292 and 1215301034301.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1900444 + ... + 2458106.
It is an arithmetic number, because the mean of its divisors is an integer number (32517945504).
Almost surely, 21215301034325 is an apocalyptic number.
1215301034325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1215301034325 is a deficient number, since it is larger than the sum of its proper divisors (1125991041963).
1215301034325 is a wasteful number, since it uses less digits than its factorization.
1215301034325 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 558283 (or 558271 counting only the distinct ones).
The product of its (nonzero) digits is 10800, while the sum is 30.
Adding to 1215301034325 its reverse (5234301035121), we get a palindrome (6449602069446).
The spelling of 1215301034325 in words is "one trillion, two hundred fifteen billion, three hundred one million, thirty-four thousand, three hundred twenty-five".
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