Base | Representation |
---|---|
bin | 100110001111… |
… | …1000011011101 |
3 | 1101201122121211 |
4 | 1030133003131 |
5 | 20113101031 |
6 | 1553424421 |
7 | 332265136 |
oct | 114370335 |
9 | 41648554 |
10 | 20050141 |
11 | 10354a71 |
12 | 686b111 |
13 | 42001b7 |
14 | 293cc8d |
15 | 1b60bb1 |
hex | 131f0dd |
20050141 has 4 divisors (see below), whose sum is σ = 20173312. Its totient is φ = 19926972.
The previous prime is 20050139. The next prime is 20050171. The reversal of 20050141 is 14105002.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 20050141 - 21 = 20050139 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20050171) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61341 + ... + 61666.
It is an arithmetic number, because the mean of its divisors is an integer number (5043328).
Almost surely, 220050141 is an apocalyptic number.
It is an amenable number.
20050141 is a deficient number, since it is larger than the sum of its proper divisors (123171).
20050141 is a wasteful number, since it uses less digits than its factorization.
20050141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 123170.
The product of its (nonzero) digits is 40, while the sum is 13.
The square root of 20050141 is about 4477.7383800307. The cubic root of 20050141 is about 271.6684117134.
Adding to 20050141 its reverse (14105002), we get a palindrome (34155143).
The spelling of 20050141 in words is "twenty million, fifty thousand, one hundred forty-one".
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