Base | Representation |
---|---|
bin | 1001101000000… |
… | …11100011000101 |
3 | 12121221202212200 |
4 | 10310003203011 |
5 | 131133124020 |
6 | 12002505113 |
7 | 2000255661 |
oct | 464034305 |
9 | 177852780 |
10 | 80754885 |
11 | 41647382 |
12 | 23065199 |
13 | 13965b73 |
14 | aa218a1 |
15 | 7152590 |
hex | 4d038c5 |
80754885 has 24 divisors (see below), whose sum is σ = 141222744. Its totient is φ = 42685440.
The previous prime is 80754859. The next prime is 80754887. The reversal of 80754885 is 58845708.
It can be written as a sum of positive squares in 4 ways, for example, as 5377761 + 75377124 = 2319^2 + 8682^2 .
It is not a de Polignac number, because 80754885 - 210 = 80753861 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 80754885.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80754887) 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 23 ways as a sum of consecutive naturals, for example, 2856 + ... + 13025.
It is an arithmetic number, because the mean of its divisors is an integer number (5884281).
Almost surely, 280754885 is an apocalyptic number.
It is an amenable number.
80754885 is a deficient number, since it is larger than the sum of its proper divisors (60467859).
80754885 is a wasteful number, since it uses less digits than its factorization.
80754885 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16005 (or 16002 counting only the distinct ones).
The product of its (nonzero) digits is 358400, while the sum is 45.
The square root of 80754885 is about 8986.3721823659. The cubic root of 80754885 is about 432.2379893662.
The spelling of 80754885 in words is "eighty million, seven hundred fifty-four thousand, eight hundred eighty-five".
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