Base | Representation |
---|---|
bin | 10001101011111100101… |
… | …100011111111100110000 |
3 | 11022012012201201120101120 |
4 | 101223330230133330300 |
5 | 124403140044113404 |
6 | 2330204551102240 |
7 | 153545151046062 |
oct | 21537454377460 |
9 | 4265181646346 |
10 | 1215420301104 |
11 | 42950308a599 |
12 | 177681971980 |
13 | 8a7c9232829 |
14 | 42b804b9732 |
15 | 219388739d9 |
hex | 11afcb1ff30 |
1215420301104 has 40 divisors (see below), whose sum is σ = 3152053069680. Its totient is φ = 403563675648.
The previous prime is 1215420301087. The next prime is 1215420301111. The reversal of 1215420301104 is 4011030245121.
It is a Harshad number since it is a multiple of its sum of digits (24).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49250809 + ... + 49275480.
It is an arithmetic number, because the mean of its divisors is an integer number (78801326742).
Almost surely, 21215420301104 is an apocalyptic number.
It is an amenable number.
1215420301104 is an abundant number, since it is smaller than the sum of its proper divisors (1936632768576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1215420301104 is a wasteful number, since it uses less digits than its factorization.
1215420301104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98526557 (or 98526551 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 24.
Adding to 1215420301104 its reverse (4011030245121), we get a palindrome (5226450546225).
The spelling of 1215420301104 in words is "one trillion, two hundred fifteen billion, four hundred twenty million, three hundred one thousand, one hundred four".
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