Base | Representation |
---|---|
bin | 1001111010001… |
… | …10000100001001 |
3 | 12210102011100210 |
4 | 10331012010021 |
5 | 132234440424 |
6 | 12125351333 |
7 | 2026355310 |
oct | 475060411 |
9 | 183364323 |
10 | 83124489 |
11 | 42a15728 |
12 | 23a08549 |
13 | 142b55b6 |
14 | b07b277 |
15 | 746e729 |
hex | 4f46109 |
83124489 has 16 divisors (see below), whose sum is σ = 127308800. Its totient is φ = 47258640.
The previous prime is 83124479. The next prime is 83124491. The reversal of 83124489 is 98442138.
It is not a de Polignac number, because 83124489 - 24 = 83124473 is a prime.
It is a super-2 number, since 2×831244892 = 13819361343022242, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (83124409) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5767 + ... + 14124.
It is an arithmetic number, because the mean of its divisors is an integer number (7956800).
Almost surely, 283124489 is an apocalyptic number.
It is an amenable number.
83124489 is a deficient number, since it is larger than the sum of its proper divisors (44184311).
83124489 is a wasteful number, since it uses less digits than its factorization.
83124489 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20100.
The product of its digits is 55296, while the sum is 39.
The square root of 83124489 is about 9117.2632406880. The cubic root of 83124489 is about 436.4250424671.
The spelling of 83124489 in words is "eighty-three million, one hundred twenty-four thousand, four hundred eighty-nine".
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