Base | Representation |
---|---|
bin | 10010101101010001… |
… | …101101101001100000 |
3 | 1220211220011212000000 |
4 | 102231101231221200 |
5 | 312114231032401 |
6 | 13121113300000 |
7 | 1310526302412 |
oct | 225521555140 |
9 | 56756155000 |
10 | 20086970976 |
11 | 8578631666 |
12 | 3a87104600 |
13 | 1b81708c57 |
14 | d87a849b2 |
15 | 7c86ea186 |
hex | 4ad46da60 |
20086970976 has 168 divisors, whose sum is σ = 62781229224. Its totient is φ = 6301670400.
The previous prime is 20086970947. The next prime is 20086970983. The reversal of 20086970976 is 67907968002.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 371251 + ... + 421901.
It is an arithmetic number, because the mean of its divisors is an integer number (373697793).
Almost surely, 220086970976 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 20086970976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31390614612).
20086970976 is an abundant number, since it is smaller than the sum of its proper divisors (42694258248).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20086970976 is an equidigital number, since it uses as much as digits as its factorization.
20086970976 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50696 (or 50673 counting only the distinct ones).
The product of its (nonzero) digits is 2286144, while the sum is 54.
The spelling of 20086970976 in words is "twenty billion, eighty-six million, nine hundred seventy thousand, nine hundred seventy-six".
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