Base | Representation |
---|---|
bin | 1001100111010… |
… | …01111101100000 |
3 | 12121202110010000 |
4 | 10303221331200 |
5 | 131121300310 |
6 | 12000340000 |
7 | 1666341300 |
oct | 463517540 |
9 | 177673100 |
10 | 80650080 |
11 | 41585665 |
12 | 23014600 |
13 | 1392a254 |
14 | a9d5600 |
15 | 71314c0 |
hex | 4ce9f60 |
80650080 has 360 divisors, whose sum is σ = 333704448. Its totient is φ = 18289152.
The previous prime is 80650067. The next prime is 80650099. The reversal of 80650080 is 8005608.
80650080 is a `hidden beast` number, since 8 + 0 + 650 + 0 + 8 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (360).
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 634977 + ... + 635103.
Almost surely, 280650080 is an apocalyptic number.
80650080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80650080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166852224).
80650080 is an abundant number, since it is smaller than the sum of its proper divisors (253054368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80650080 is a wasteful number, since it uses less digits than its factorization.
80650080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 168 (or 144 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 80650080 is about 8980.5389593276. The cubic root of 80650080 is about 432.0509199237.
Adding to 80650080 its reverse (8005608), we get a palindrome (88655688).
The spelling of 80650080 in words is "eighty million, six hundred fifty thousand, eighty".
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