Base | Representation |
---|---|
bin | 1001111111111… |
… | …00111011010010 |
3 | 12211211012210120 |
4 | 10333330323102 |
5 | 132432422430 |
6 | 12153411110 |
7 | 2035625061 |
oct | 477747322 |
9 | 184735716 |
10 | 83873490 |
11 | 43387438 |
12 | 24109a96 |
13 | 144b84ac |
14 | b1d41d8 |
15 | 756b610 |
hex | 4ffced2 |
83873490 has 32 divisors (see below), whose sum is σ = 201540096. Its totient is φ = 22339200.
The previous prime is 83873453. The next prime is 83873497. The reversal of 83873490 is 9437838.
It is not an unprimeable number, because it can be changed into a prime (83873497) 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, 42015 + ... + 43965.
It is an arithmetic number, because the mean of its divisors is an integer number (6298128).
Almost surely, 283873490 is an apocalyptic number.
83873490 is an abundant number, since it is smaller than the sum of its proper divisors (117666606).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
83873490 is a wasteful number, since it uses less digits than its factorization.
83873490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3394.
The product of its (nonzero) digits is 145152, while the sum is 42.
The square root of 83873490 is about 9158.2471030214. The cubic root of 83873490 is about 437.7319412320.
The spelling of 83873490 in words is "eighty-three million, eight hundred seventy-three thousand, four hundred ninety".
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