Base | Representation |
---|---|
bin | 1001001111001011001111… |
… | …10000111001001001111010 |
3 | 2122220212110220001200200210 |
4 | 10213211213300321021322 |
5 | 10130300242122304200 |
6 | 111111255404211550 |
7 | 4164353120336634 |
oct | 447454760711172 |
9 | 78825426050623 |
10 | 20312641213050 |
11 | 65215a746284a |
12 | 2340886539bb6 |
13 | b44621072764 |
14 | 5031cc211a54 |
15 | 2535a2224650 |
hex | 127967c3927a |
20312641213050 has 48 divisors (see below), whose sum is σ = 50375888763552. Its totient is φ = 5416646414400.
The previous prime is 20312641213037. The next prime is 20312641213069. The reversal of 20312641213050 is 5031214621302.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a junction number, because it is equal to n+sod(n) for n = 20312641212999 and 20312641213017.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14403945 + ... + 15751155.
It is an arithmetic number, because the mean of its divisors is an integer number (1049497682574).
Almost surely, 220312641213050 is an apocalyptic number.
20312641213050 is an abundant number, since it is smaller than the sum of its proper divisors (30063247550502).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20312641213050 is a wasteful number, since it uses less digits than its factorization.
20312641213050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1447743 (or 1447738 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 30.
Adding to 20312641213050 its reverse (5031214621302), we get a palindrome (25343855834352).
The spelling of 20312641213050 in words is "twenty trillion, three hundred twelve billion, six hundred forty-one million, two hundred thirteen thousand, fifty".
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