Base | Representation |
---|---|
bin | 1001100111110… |
… | …10111011010100 |
3 | 12121212222102210 |
4 | 10303322323110 |
5 | 131131011242 |
6 | 12002033420 |
7 | 2000051013 |
oct | 463727324 |
9 | 177788383 |
10 | 80719572 |
11 | 4162289a |
12 | 23048870 |
13 | 13952a7b |
14 | aa12a7a |
15 | 7146d9c |
hex | 4cfaed4 |
80719572 has 24 divisors (see below), whose sum is σ = 188721792. Its totient is φ = 26852800.
The previous prime is 80719571. The next prime is 80719577. The reversal of 80719572 is 27591708.
It is a self number, because there is not a number n which added to its sum of digits gives 80719572.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80719571) 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, 204 + ... + 12707.
It is an arithmetic number, because the mean of its divisors is an integer number (7863408).
Almost surely, 280719572 is an apocalyptic number.
It is an amenable number.
80719572 is an abundant number, since it is smaller than the sum of its proper divisors (108002220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80719572 is a wasteful number, since it uses less digits than its factorization.
80719572 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13439 (or 13437 counting only the distinct ones).
The product of its (nonzero) digits is 35280, while the sum is 39.
The square root of 80719572 is about 8984.4071590729. The cubic root of 80719572 is about 432.1749762721.
The spelling of 80719572 in words is "eighty million, seven hundred nineteen thousand, five hundred seventy-two".
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