Base | Representation |
---|---|
bin | 10010101011010011… |
… | …111100000110000001 |
3 | 1220202121010202022210 |
4 | 102223103330012001 |
5 | 312032311000001 |
6 | 13113534452333 |
7 | 1306646121210 |
oct | 225323740601 |
9 | 56677122283 |
10 | 20054000001 |
11 | 8560a62022 |
12 | 3a780640a9 |
13 | 1b779338b9 |
14 | d83541077 |
15 | 7c5885dd6 |
hex | 4ab4fc181 |
20054000001 has 16 divisors (see below), whose sum is σ = 30569664384. Its totient is φ = 11455233024.
The previous prime is 20053999981. The next prime is 20054000009. The reversal of 20054000001 is 10000045002.
It is not a de Polignac number, because 20054000001 - 219 = 20053475713 is a prime.
It is not an unprimeable number, because it can be changed into a prime (20054000009) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115626 + ... + 231251.
It is an arithmetic number, because the mean of its divisors is an integer number (1910604024).
Almost surely, 220054000001 is an apocalyptic number.
20054000001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
20054000001 is the 115626-th pentagonal number.
It is an amenable number.
20054000001 is a deficient number, since it is larger than the sum of its proper divisors (10515664383).
20054000001 is a wasteful number, since it uses less digits than its factorization.
20054000001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 349640.
The product of its (nonzero) digits is 40, while the sum is 12.
Adding to 20054000001 its reverse (10000045002), we get a palindrome (30054045003).
The spelling of 20054000001 in words is "twenty billion, fifty-four million, one", and thus it is an aban number.
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