Base | Representation |
---|---|
bin | 1001101001110… |
… | …11001111011001 |
3 | 12122101100210102 |
4 | 10310323033121 |
5 | 131212424001 |
6 | 12011425145 |
7 | 2002226021 |
oct | 464731731 |
9 | 178340712 |
10 | 80983001 |
11 | 41792800 |
12 | 231551b5 |
13 | 13a15948 |
14 | aa80a81 |
15 | 7199e6b |
hex | 4d3b3d9 |
80983001 has 12 divisors (see below), whose sum is σ = 89535600. Its totient is φ = 73190040.
The previous prime is 80982991. The next prime is 80983009. The reversal of 80983001 is 10038908.
It is a happy number.
It is a de Polignac number, because none of the positive numbers 2k-80983001 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80983009) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19790 + ... + 23528.
It is an arithmetic number, because the mean of its divisors is an integer number (7461300).
Almost surely, 280983001 is an apocalyptic number.
80983001 is the 4025-th centered decagonal number.
It is an amenable number.
80983001 is a deficient number, since it is larger than the sum of its proper divisors (8552599).
80983001 is a wasteful number, since it uses less digits than its factorization.
80983001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3940 (or 3929 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 29.
The square root of 80983001 is about 8999.0555615576. The cubic root of 80983001 is about 432.6446013197.
The spelling of 80983001 in words is "eighty million, nine hundred eighty-three thousand, one".
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