Base | Representation |
---|---|
bin | 1001101001101… |
… | …11001101101100 |
3 | 12122100112011120 |
4 | 10310313031230 |
5 | 131211412013 |
6 | 12011220540 |
7 | 2002126650 |
oct | 464671554 |
9 | 178315146 |
10 | 80966508 |
11 | 41781377 |
12 | 23147750 |
13 | 13a0b29c |
14 | aa78a60 |
15 | 7195123 |
hex | 4d3736c |
80966508 has 96 divisors (see below), whose sum is σ = 224716800. Its totient is φ = 22208256.
The previous prime is 80966507. The next prime is 80966519. The reversal of 80966508 is 80566908.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a self number, because there is not a number n which added to its sum of digits gives 80966508.
It is not an unprimeable number, because it can be changed into a prime (80966503) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 338653 + ... + 338891.
It is an arithmetic number, because the mean of its divisors is an integer number (2340800).
Almost surely, 280966508 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80966508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112358400).
80966508 is an abundant number, since it is smaller than the sum of its proper divisors (143750292).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80966508 is a wasteful number, since it uses less digits than its factorization.
80966508 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 399 (or 397 counting only the distinct ones).
The product of its (nonzero) digits is 103680, while the sum is 42.
The square root of 80966508 is about 8998.1391409558. The cubic root of 80966508 is about 432.6152285222.
The spelling of 80966508 in words is "eighty million, nine hundred sixty-six thousand, five hundred eight".
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