Base | Representation |
---|---|
bin | 1001100110000… |
… | …10100011010000 |
3 | 12121110020200100 |
4 | 10303002203100 |
5 | 131101114111 |
6 | 11553052400 |
7 | 1665066543 |
oct | 463024320 |
9 | 177406610 |
10 | 80488656 |
11 | 41485356 |
12 | 22b57100 |
13 | 138a1931 |
14 | a99285a |
15 | 70ed756 |
hex | 4cc28d0 |
80488656 has 60 divisors (see below), whose sum is σ = 226672992. Its totient is φ = 26660928.
The previous prime is 80488651. The next prime is 80488673. The reversal of 80488656 is 65688408.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80488651) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22375 + ... + 25721.
Almost surely, 280488656 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 80488656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113336496).
80488656 is an abundant number, since it is smaller than the sum of its proper divisors (146184336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80488656 is a wasteful number, since it uses less digits than its factorization.
80488656 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3528 (or 3519 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The square root of 80488656 is about 8971.5470237858. The cubic root of 80488656 is about 431.7624723041.
The spelling of 80488656 in words is "eighty million, four hundred eighty-eight thousand, six hundred fifty-six".
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