Base | Representation |
---|---|
bin | 10010101100011110… |
… | …001101000001110100 |
3 | 1220210221202211102112 |
4 | 102230132031001310 |
5 | 312102301434040 |
6 | 13115512030152 |
7 | 1310303443244 |
oct | 225436150164 |
9 | 56727684375 |
10 | 20073468020 |
11 | 8570a496a1 |
12 | 3a82692358 |
13 | 1b7b98bb38 |
14 | d85d6bb24 |
15 | 7c742e365 |
hex | 4ac78d074 |
20073468020 has 24 divisors (see below), whose sum is σ = 42164843784. Its totient is φ = 8027375616.
The previous prime is 20073467983. The next prime is 20073468043. The reversal of 20073468020 is 2086437002.
It can be written as a sum of positive squares in 4 ways, for example, as 5909611876 + 14163856144 = 76874^2 + 119012^2 .
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, 42557 + ... + 204836.
It is an arithmetic number, because the mean of its divisors is an integer number (1756868491).
Almost surely, 220073468020 is an apocalyptic number.
20073468020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20073468020 is an abundant number, since it is smaller than the sum of its proper divisors (22091375764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20073468020 is a wasteful number, since it uses less digits than its factorization.
20073468020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 251459 (or 251457 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 32.
The spelling of 20073468020 in words is "twenty billion, seventy-three million, four hundred sixty-eight thousand, twenty".
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