Base | Representation |
---|---|
bin | 1001111001010… |
… | …10000110001010 |
3 | 12210012100012212 |
4 | 10330222012022 |
5 | 132222304210 |
6 | 12123105122 |
7 | 2025400313 |
oct | 474520612 |
9 | 183170185 |
10 | 83009930 |
11 | 42947653 |
12 | 239721a2 |
13 | 14275403 |
14 | b04b60a |
15 | 744a805 |
hex | 4f2a18a |
83009930 has 8 divisors (see below), whose sum is σ = 149417892. Its totient is φ = 33203968.
The previous prime is 83009923. The next prime is 83009939. The reversal of 83009930 is 3990038.
It can be written as a sum of positive squares in 2 ways, for example, as 82101721 + 908209 = 9061^2 + 953^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (83009939) 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, 4150487 + ... + 4150506.
Almost surely, 283009930 is an apocalyptic number.
83009930 is a deficient number, since it is larger than the sum of its proper divisors (66407962).
83009930 is a wasteful number, since it uses less digits than its factorization.
83009930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8301000.
The product of its (nonzero) digits is 5832, while the sum is 32.
The square root of 83009930 is about 9110.9785423960. The cubic root of 83009930 is about 436.2244621794.
Adding to 83009930 its reverse (3990038), we get a palindrome (86999968).
The spelling of 83009930 in words is "eighty-three million, nine thousand, nine hundred thirty".
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