Base | Representation |
---|---|
bin | 1001100111110… |
… | …01010100000000 |
3 | 12121212122100220 |
4 | 10303321110000 |
5 | 131130303320 |
6 | 12001543040 |
7 | 2000022516 |
oct | 463712400 |
9 | 177778326 |
10 | 80712960 |
11 | 41618929 |
12 | 23044a80 |
13 | 1394ca63 |
14 | aa104b6 |
15 | 7144e40 |
hex | 4cf9500 |
80712960 has 72 divisors (see below), whose sum is σ = 257789280. Its totient is φ = 21522432.
The previous prime is 80712949. The next prime is 80712967. The reversal of 80712960 is 6921708.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80712967) 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 7 ways as a sum of consecutive naturals, for example, 6670 + ... + 14349.
Almost surely, 280712960 is an apocalyptic number.
80712960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
80712960 is an abundant number, since it is smaller than the sum of its proper divisors (177076320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80712960 is a wasteful number, since it uses less digits than its factorization.
80712960 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21043 (or 21029 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 33.
The square root of 80712960 is about 8984.0391806804. The cubic root of 80712960 is about 432.1631756687.
The spelling of 80712960 in words is "eighty million, seven hundred twelve thousand, nine hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.083 sec. • engine limits •