Base | Representation |
---|---|
bin | 1001111001010… |
… | …01010101110111 |
3 | 12210012011222101 |
4 | 10330221111313 |
5 | 132222204324 |
6 | 12123042531 |
7 | 2025355306 |
oct | 474512567 |
9 | 183164871 |
10 | 83006839 |
11 | 429452a3 |
12 | 23970447 |
13 | 14273b96 |
14 | b04a43d |
15 | 7449944 |
hex | 4f29577 |
83006839 has 8 divisors (see below), whose sum is σ = 91175040. Its totient is φ = 75218616.
The previous prime is 83006831. The next prime is 83006843. The reversal of 83006839 is 93860038.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 83006839 - 23 = 83006831 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 83006798 and 83006807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (83006831) 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, 94537 + ... + 95410.
It is an arithmetic number, because the mean of its divisors is an integer number (11396880).
Almost surely, 283006839 is an apocalyptic number.
83006839 is a deficient number, since it is larger than the sum of its proper divisors (8168201).
83006839 is a wasteful number, since it uses less digits than its factorization.
83006839 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 189989.
The product of its (nonzero) digits is 31104, while the sum is 37.
The square root of 83006839 is about 9110.8089102999. The cubic root of 83006839 is about 436.2190476202.
It can be divided in two parts, 83006 and 839, that added together give a triangular number (83845 = T409).
The spelling of 83006839 in words is "eighty-three million, six thousand, eight hundred thirty-nine".
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