Base | Representation |
---|---|
bin | 10010101110010001… |
… | …110010101011011000 |
3 | 1220220001210021021100 |
4 | 102232101302223120 |
5 | 312133031100132 |
6 | 13122513311400 |
7 | 1311122133552 |
oct | 225621625330 |
9 | 56801707240 |
10 | 20103768792 |
11 | 8587065058 |
12 | 3a90865560 |
13 | 1b8503a9a3 |
14 | d89db84d2 |
15 | 7c9e1737c |
hex | 4ae472ad8 |
20103768792 has 96 divisors (see below), whose sum is σ = 56849551200. Its totient is φ = 6406000128.
The previous prime is 20103768791. The next prime is 20103768847. The reversal of 20103768792 is 29786730102.
20103768792 is a `hidden beast` number, since 201 + 0 + 376 + 8 + 79 + 2 = 666.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20103768791) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4092834 + ... + 4097742.
It is an arithmetic number, because the mean of its divisors is an integer number (592182825).
Almost surely, 220103768792 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 20103768792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28424775600).
20103768792 is an abundant number, since it is smaller than the sum of its proper divisors (36745782408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20103768792 is a wasteful number, since it uses less digits than its factorization.
20103768792 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7417 (or 7410 counting only the distinct ones).
The product of its (nonzero) digits is 254016, while the sum is 45.
The spelling of 20103768792 in words is "twenty billion, one hundred three million, seven hundred sixty-eight thousand, seven hundred ninety-two".
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