Base | Representation |
---|---|
bin | 1011111100101… |
… | …0101001101011 |
3 | 10111022000021220 |
4 | 2333022221223 |
5 | 100312110011 |
6 | 4550033123 |
7 | 1145645265 |
oct | 277125153 |
9 | 114260256 |
10 | 50113131 |
11 | 26318812 |
12 | 149487a3 |
13 | a4c7a53 |
14 | 6926b35 |
15 | 45ed506 |
hex | 2fcaa6b |
50113131 has 8 divisors (see below), whose sum is σ = 69121680. Its totient is φ = 32256672.
The previous prime is 50113123. The next prime is 50113153. The reversal of 50113131 is 13131105.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 50113131 - 23 = 50113123 is a prime.
It is a super-2 number, since 2×501131312 = 5022651797246322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 50113131.
It is not an unprimeable number, because it can be changed into a prime (50113171) 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, 287920 + ... + 288093.
It is an arithmetic number, because the mean of its divisors is an integer number (8640210).
Almost surely, 250113131 is an apocalyptic number.
50113131 is a deficient number, since it is larger than the sum of its proper divisors (19008549).
50113131 is a wasteful number, since it uses less digits than its factorization.
50113131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 576045.
The product of its (nonzero) digits is 45, while the sum is 15.
The square root of 50113131 is about 7079.0628617070. The cubic root of 50113131 is about 368.6807926808.
Adding to 50113131 its reverse (13131105), we get a palindrome (63244236).
The spelling of 50113131 in words is "fifty million, one hundred thirteen thousand, one hundred thirty-one".
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