Base | Representation |
---|---|
bin | 1001100011010… |
… | …11010110011101 |
3 | 12120210002201210 |
4 | 10301223112131 |
5 | 131003201420 |
6 | 11541255033 |
7 | 1662051330 |
oct | 461532635 |
9 | 176702653 |
10 | 80131485 |
11 | 41260a75 |
12 | 22a04479 |
13 | 137a81a5 |
14 | a8dc617 |
15 | 707c9e0 |
hex | 4c6b59d |
80131485 has 16 divisors (see below), whose sum is σ = 146526336. Its totient is φ = 36631488.
The previous prime is 80131483. The next prime is 80131487. The reversal of 80131485 is 58413108.
It is an interprime number because it is at equal distance from previous prime (80131483) and next prime (80131487).
It is not a de Polignac number, because 80131485 - 21 = 80131483 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80131483) 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, 381474 + ... + 381683.
It is an arithmetic number, because the mean of its divisors is an integer number (9157896).
Almost surely, 280131485 is an apocalyptic number.
It is an amenable number.
80131485 is a deficient number, since it is larger than the sum of its proper divisors (66394851).
80131485 is a wasteful number, since it uses less digits than its factorization.
80131485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 763172.
The product of its (nonzero) digits is 3840, while the sum is 30.
The square root of 80131485 is about 8951.6191272864. The cubic root of 80131485 is about 431.1228720005.
The spelling of 80131485 in words is "eighty million, one hundred thirty-one thousand, four hundred eighty-five".
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