Base | Representation |
---|---|
bin | 100110001110… |
… | …1011111111000 |
3 | 1101201022212210 |
4 | 1030131133320 |
5 | 20112400033 |
6 | 1553335120 |
7 | 332240433 |
oct | 114353770 |
9 | 41638783 |
10 | 20043768 |
11 | 103501a8 |
12 | 68674a0 |
13 | 41ca324 |
14 | 293a81a |
15 | 1b5dd63 |
hex | 131d7f8 |
20043768 has 32 divisors (see below), whose sum is σ = 50274000. Its totient is φ = 6659328.
The previous prime is 20043767. The next prime is 20043769. The reversal of 20043768 is 86734002.
It is an interprime number because it is at equal distance from previous prime (20043767) and next prime (20043769).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20043767) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7180 + ... + 9572.
Almost surely, 220043768 is an apocalyptic number.
It is an amenable number.
20043768 is an abundant number, since it is smaller than the sum of its proper divisors (30230232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20043768 is a wasteful number, since it uses less digits than its factorization.
20043768 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2751 (or 2747 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 30.
The square root of 20043768 is about 4477.0266919017. The cubic root of 20043768 is about 271.6396251119.
The spelling of 20043768 in words is "twenty million, forty-three thousand, seven hundred sixty-eight".
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