Base | Representation |
---|---|
bin | 100000000100011011… |
… | …1001000100000000100 |
3 | 20120202112120100201200 |
4 | 1000020313020200010 |
5 | 2112020221202304 |
6 | 51345415222500 |
7 | 4655421410163 |
oct | 1001067104004 |
9 | 216675510650 |
10 | 68868147204 |
11 | 2723030133a |
12 | 1141b977a30 |
13 | 6656ac357c |
14 | 34945853da |
15 | 1bd1086e39 |
hex | 1008dc8804 |
68868147204 has 36 divisors (see below), whose sum is σ = 174354166896. Its totient is φ = 22920339888.
The previous prime is 68868147191. The next prime is 68868147209. The reversal of 68868147204 is 40274186886.
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (68868147209) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1464414 + ... + 1510709.
Almost surely, 268868147204 is an apocalyptic number.
It is an amenable number.
68868147204 is an abundant number, since it is smaller than the sum of its proper divisors (105486019692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68868147204 is a wasteful number, since it uses less digits than its factorization.
68868147204 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2975776 (or 2975771 counting only the distinct ones).
The product of its (nonzero) digits is 4128768, while the sum is 54.
The spelling of 68868147204 in words is "sixty-eight billion, eight hundred sixty-eight million, one hundred forty-seven thousand, two hundred four".
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