Base | Representation |
---|---|
bin | 11110100110000100010010 |
3 | 120002110201000 |
4 | 132212010102 |
5 | 4023121432 |
6 | 443522430 |
7 | 125112426 |
oct | 36460422 |
9 | 16073630 |
10 | 8020242 |
11 | 45887aa |
12 | 2829416 |
13 | 187a709 |
14 | 10cab86 |
15 | a8657c |
hex | 7a6112 |
8020242 has 32 divisors (see below), whose sum is σ = 18763200. Its totient is φ = 2532384.
The previous prime is 8020241. The next prime is 8020247. The reversal of 8020242 is 2420208.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (8020241) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2883 + ... + 4934.
It is an arithmetic number, because the mean of its divisors is an integer number (586350).
Almost surely, 28020242 is an apocalyptic number.
8020242 is an abundant number, since it is smaller than the sum of its proper divisors (10742958).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8020242 is a wasteful number, since it uses less digits than its factorization.
8020242 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7847 (or 7841 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
The square root of 8020242 is about 2832.0031779643. The cubic root of 8020242 is about 200.1685412627.
Subtracting from 8020242 its sum of digits (18), we obtain a square (8020224 = 28322).
The spelling of 8020242 in words is "eight million, twenty thousand, two hundred forty-two".
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