Base | Representation |
---|---|
bin | 1100001001111… |
… | …1100001111001 |
3 | 10112221022101100 |
4 | 3002133201321 |
5 | 101023010311 |
6 | 5020442013 |
7 | 1156236360 |
oct | 302374171 |
9 | 115838340 |
10 | 50985081 |
11 | 26863934 |
12 | 150a9309 |
13 | a7418b4 |
14 | 6ab27d7 |
15 | 4721a56 |
hex | 309f879 |
50985081 has 24 divisors (see below), whose sum is σ = 85552064. Its totient is φ = 28654560.
The previous prime is 50985079. The next prime is 50985101. The reversal of 50985081 is 18058905.
It is not a de Polignac number, because 50985081 - 21 = 50985079 is a prime.
It is a super-2 number, since 2×509850812 = 5198956969153122, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (50985031) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2791 + ... + 10476.
Almost surely, 250985081 is an apocalyptic number.
It is an amenable number.
50985081 is a deficient number, since it is larger than the sum of its proper divisors (34566983).
50985081 is a wasteful number, since it uses less digits than its factorization.
50985081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13341 (or 13338 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 36.
The square root of 50985081 is about 7140.3838132134. The cubic root of 50985081 is about 370.8068125740.
The spelling of 50985081 in words is "fifty million, nine hundred eighty-five thousand, eighty-one".
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