Base | Representation |
---|---|
bin | 1001100110100… |
… | …10011110001110 |
3 | 12121120120010200 |
4 | 10303102132032 |
5 | 131110210440 |
6 | 11554314330 |
7 | 1665460635 |
oct | 463223616 |
9 | 177516120 |
10 | 80553870 |
11 | 4151a351 |
12 | 22b889a6 |
13 | 138c5517 |
14 | a9ac51c |
15 | 7112c30 |
hex | 4cd278e |
80553870 has 48 divisors (see below), whose sum is σ = 210880800. Its totient is φ = 21333312.
The previous prime is 80553853. The next prime is 80553883. The reversal of 80553870 is 7835508.
It is a happy number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10407 + ... + 16413.
It is an arithmetic number, because the mean of its divisors is an integer number (4393350).
Almost surely, 280553870 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80553870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105440400).
80553870 is an abundant number, since it is smaller than the sum of its proper divisors (130326930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80553870 is a wasteful number, since it uses less digits than its factorization.
80553870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6169 (or 6166 counting only the distinct ones).
The product of its (nonzero) digits is 33600, while the sum is 36.
The square root of 80553870 is about 8975.1807781236. The cubic root of 80553870 is about 431.8790492157.
The spelling of 80553870 in words is "eighty million, five hundred fifty-three thousand, eight hundred seventy".
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