Base | Representation |
---|---|
bin | 10011000101000010… |
… | …111110011011111011 |
3 | 1221212200120110202010 |
4 | 103011002332123323 |
5 | 313423323321023 |
6 | 13224440541003 |
7 | 1323441044016 |
oct | 230502763373 |
9 | 57780513663 |
10 | 20485760763 |
11 | 87627502a6 |
12 | 3b78781763 |
13 | 1c16215740 |
14 | dc4a1237d |
15 | 7ed720093 |
hex | 4c50be6fb |
20485760763 has 32 divisors (see below), whose sum is σ = 30140377344. Its totient is φ = 12296737152.
The previous prime is 20485760749. The next prime is 20485760809. The reversal of 20485760763 is 36706758402.
It is not a de Polignac number, because 20485760763 - 213 = 20485752571 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (20485760063) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288420 + ... + 1304222.
It is an arithmetic number, because the mean of its divisors is an integer number (941886792).
Almost surely, 220485760763 is an apocalyptic number.
20485760763 is a deficient number, since it is larger than the sum of its proper divisors (9654616581).
20485760763 is a wasteful number, since it uses less digits than its factorization.
20485760763 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16635.
The product of its (nonzero) digits is 1693440, while the sum is 48.
The spelling of 20485760763 in words is "twenty billion, four hundred eighty-five million, seven hundred sixty thousand, seven hundred sixty-three".
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