Base | Representation |
---|---|
bin | 1001111001011… |
… | …00001010111100 |
3 | 12210012202212121 |
4 | 10330230022330 |
5 | 132223042203 |
6 | 12123212324 |
7 | 2025434143 |
oct | 474541274 |
9 | 183182777 |
10 | 83018428 |
11 | 42952a79 |
12 | 239770a4 |
13 | 1427923c |
14 | b05075a |
15 | 744d0bd |
hex | 4f2c2bc |
83018428 has 12 divisors (see below), whose sum is σ = 147745080. Its totient is φ = 40805552.
The previous prime is 83018413. The next prime is 83018437. The reversal of 83018428 is 82481038.
It is a junction number, because it is equal to n+sod(n) for n = 83018393 and 83018402.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175651 + ... + 176122.
It is an arithmetic number, because the mean of its divisors is an integer number (12312090).
Almost surely, 283018428 is an apocalyptic number.
It is an amenable number.
83018428 is a deficient number, since it is larger than the sum of its proper divisors (64726652).
83018428 is a wasteful number, since it uses less digits than its factorization.
83018428 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 351836 (or 351834 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 34.
The square root of 83018428 is about 9111.4448909051. Note that the first 3 decimals coincide. The cubic root of 83018428 is about 436.2393475832.
The spelling of 83018428 in words is "eighty-three million, eighteen thousand, four hundred twenty-eight".
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