Base | Representation |
---|---|
bin | 1001100110010… |
… | …11011011011001 |
3 | 12121112002120001 |
4 | 10303023123121 |
5 | 131103300032 |
6 | 11553533001 |
7 | 1665310546 |
oct | 463133331 |
9 | 177462501 |
10 | 80525017 |
11 | 414aa701 |
12 | 22b74161 |
13 | 138b5351 |
14 | a9a1bcd |
15 | 71093e7 |
hex | 4ccb6d9 |
80525017 has 4 divisors (see below), whose sum is σ = 80643600. Its totient is φ = 80406436.
The previous prime is 80525009. The next prime is 80525051. The reversal of 80525017 is 71052508.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 80525017 - 23 = 80525009 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80525057) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58267 + ... + 59632.
It is an arithmetic number, because the mean of its divisors is an integer number (20160900).
Almost surely, 280525017 is an apocalyptic number.
It is an amenable number.
80525017 is a deficient number, since it is larger than the sum of its proper divisors (118583).
80525017 is a wasteful number, since it uses less digits than its factorization.
80525017 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 118582.
The product of its (nonzero) digits is 2800, while the sum is 28.
The square root of 80525017 is about 8973.5732570699. The cubic root of 80525017 is about 431.8274791948.
It can be divided in two parts, 8052501 and 7, that added together give a palindrome (8052508).
The spelling of 80525017 in words is "eighty million, five hundred twenty-five thousand, seventeen".
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