Base | Representation |
---|---|
bin | 110001101000000001100011… |
… | …000011100111000000101100 |
3 | 1001121202221120200212121211111 |
4 | 301220001203003213000230 |
5 | 212101341131310113030 |
6 | 2052104500104201404 |
7 | 63654245265213211 |
oct | 6150014303470054 |
9 | 1047687520777744 |
10 | 218254720004140 |
11 | 635a734160a816 |
12 | 2058b288169264 |
13 | 94a2440c134a1 |
14 | 3bc7828a1bb08 |
15 | 1a3748d30b62a |
hex | c680630e702c |
218254720004140 has 48 divisors (see below), whose sum is σ = 485684337600000. Its totient is φ = 82100696850432.
The previous prime is 218254720004117. The next prime is 218254720004179. The reversal of 218254720004140 is 41400027452812.
It is a junction number, because it is equal to n+sod(n) for n = 218254720004093 and 218254720004102.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256551180 + ... + 257400499.
It is an arithmetic number, because the mean of its divisors is an integer number (10118423700000).
Almost surely, 2218254720004140 is an apocalyptic number.
218254720004140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
218254720004140 is an abundant number, since it is smaller than the sum of its proper divisors (267429617595860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
218254720004140 is a wasteful number, since it uses less digits than its factorization.
218254720004140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 513952954 (or 513952952 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 40.
Adding to 218254720004140 its reverse (41400027452812), we get a palindrome (259654747456952).
The spelling of 218254720004140 in words is "two hundred eighteen trillion, two hundred fifty-four billion, seven hundred twenty million, four thousand, one hundred forty".
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