Base | Representation |
---|---|
bin | 10010111101001000… |
… | …110111110100000000 |
3 | 1221112102221000222112 |
4 | 102331020313310000 |
5 | 313140342320033 |
6 | 13203341154452 |
7 | 1320240254135 |
oct | 227510676400 |
9 | 57472830875 |
10 | 20353088768 |
11 | 86a4873921 |
12 | 3b4025ba28 |
13 | 1bc48a29bc |
14 | db115858c |
15 | 7e1c64c48 |
hex | 4bd237d00 |
20353088768 has 72 divisors (see below), whose sum is σ = 40943707392. Its totient is φ = 10097491968.
The previous prime is 20353088741. The next prime is 20353088803. The reversal of 20353088768 is 86788035302.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33530321 + ... + 33530927.
Almost surely, 220353088768 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 20353088768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20471853696).
20353088768 is an abundant number, since it is smaller than the sum of its proper divisors (20590618624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20353088768 is an equidigital number, since it uses as much as digits as its factorization.
20353088768 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1427 (or 1413 counting only the distinct ones).
The product of its (nonzero) digits is 1935360, while the sum is 50.
The spelling of 20353088768 in words is "twenty billion, three hundred fifty-three million, eighty-eight thousand, seven hundred sixty-eight".
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