Base | Representation |
---|---|
bin | 1011111010111… |
… | …1101111000001 |
3 | 10111002102001120 |
4 | 2332233233001 |
5 | 100300043011 |
6 | 4543422453 |
7 | 1145005665 |
oct | 276575701 |
9 | 114072046 |
10 | 50002881 |
11 | 262529a5 |
12 | 148b4a29 |
13 | a489806 |
14 | 68d88a5 |
15 | 45caa06 |
hex | 2fafbc1 |
50002881 has 4 divisors (see below), whose sum is σ = 66670512. Its totient is φ = 33335252.
The previous prime is 50002861. The next prime is 50002951. The reversal of 50002881 is 18820005.
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 50002881 - 26 = 50002817 is a prime.
It is a super-2 number, since 2×500028812 = 5000576216600322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (50002811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8333811 + ... + 8333816.
It is an arithmetic number, because the mean of its divisors is an integer number (16667628).
Almost surely, 250002881 is an apocalyptic number.
It is an amenable number.
50002881 is a deficient number, since it is larger than the sum of its proper divisors (16667631).
50002881 is a wasteful number, since it uses less digits than its factorization.
50002881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16667630.
The product of its (nonzero) digits is 640, while the sum is 24.
The square root of 50002881 is about 7071.2715263947. The cubic root of 50002881 is about 368.4102255246.
Adding to 50002881 its reverse (18820005), we get a palindrome (68822886).
The spelling of 50002881 in words is "fifty million, two thousand, eight hundred eighty-one".
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