Base | Representation |
---|---|
bin | 1001101001001… |
… | …11110100111001 |
3 | 12122020022201020 |
4 | 10310213310321 |
5 | 131202402411 |
6 | 12010013053 |
7 | 2001445131 |
oct | 464476471 |
9 | 178208636 |
10 | 80903481 |
11 | 41738a8a |
12 | 23117189 |
13 | 139b86a9 |
14 | aa5dac1 |
15 | 7181606 |
hex | 4d27d39 |
80903481 has 8 divisors (see below), whose sum is σ = 108347424. Its totient is φ = 53697600.
The previous prime is 80903467. The next prime is 80903483. The reversal of 80903481 is 18430908.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80903481 - 27 = 80903353 is a prime.
It is a super-2 number, since 2×809034812 = 13090746475834722, which contains 22 as substring.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80903483) 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, 58720 + ... + 60081.
It is an arithmetic number, because the mean of its divisors is an integer number (13543428).
Almost surely, 280903481 is an apocalyptic number.
It is an amenable number.
80903481 is a deficient number, since it is larger than the sum of its proper divisors (27443943).
80903481 is a wasteful number, since it uses less digits than its factorization.
80903481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119031.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 80903481 is about 8994.6362350014. The cubic root of 80903481 is about 432.5029453952.
The spelling of 80903481 in words is "eighty million, nine hundred three thousand, four hundred eighty-one".
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