Base | Representation |
---|---|
bin | 10010101011000110… |
… | …101010001010110100 |
3 | 1220202100120212220000 |
4 | 102223012222022310 |
5 | 312030413044313 |
6 | 13113332111300 |
7 | 1306604411523 |
oct | 225306521264 |
9 | 56670525800 |
10 | 20050518708 |
11 | 8559aa4520 |
12 | 3a76a65530 |
13 | 1b76cb516c |
14 | d82cb64ba |
15 | 7c53e9673 |
hex | 4ab1aa2b4 |
20050518708 has 120 divisors (see below), whose sum is σ = 58119134304. Its totient is φ = 5976244800.
The previous prime is 20050518701. The next prime is 20050518749. The reversal of 20050518708 is 80781505002.
20050518708 is a `hidden beast` number, since 20 + 0 + 50 + 518 + 70 + 8 = 666.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20050518701) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 171291 + ... + 263517.
Almost surely, 220050518708 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20050518708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29059567152).
20050518708 is an abundant number, since it is smaller than the sum of its proper divisors (38068615596).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20050518708 is a wasteful number, since it uses less digits than its factorization.
20050518708 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92315 (or 92304 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 36.
The spelling of 20050518708 in words is "twenty billion, fifty million, five hundred eighteen thousand, seven hundred eight".
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