Base | Representation |
---|---|
bin | 10011100000110001… |
… | …010010111001000111 |
3 | 2000002002210101101002 |
4 | 103200301102321013 |
5 | 320401411404012 |
6 | 13342534123515 |
7 | 1341116416100 |
oct | 234061227107 |
9 | 60062711332 |
10 | 20950888007 |
11 | 8981259285 |
12 | 40884b059b |
13 | 1c8b6aa96a |
14 | 102a6cb3a7 |
15 | 82949a7c2 |
hex | 4e0c52e47 |
20950888007 has 48 divisors (see below), whose sum is σ = 25734159360. Its totient is φ = 16984598400.
The previous prime is 20950888001. The next prime is 20950888051. The reversal of 20950888007 is 70088805902.
It is not a de Polignac number, because 20950888007 - 216 = 20950822471 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20950888001) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14145707 + ... + 14147187.
It is an arithmetic number, because the mean of its divisors is an integer number (536128320).
Almost surely, 220950888007 is an apocalyptic number.
20950888007 is a deficient number, since it is larger than the sum of its proper divisors (4783271353).
20950888007 is a wasteful number, since it uses less digits than its factorization.
20950888007 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1732 (or 1725 counting only the distinct ones).
The product of its (nonzero) digits is 322560, while the sum is 47.
The spelling of 20950888007 in words is "twenty billion, nine hundred fifty million, eight hundred eighty-eight thousand, seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •