Base | Representation |
---|---|
bin | 1001100100000… |
… | …11110110000000 |
3 | 12120222012100110 |
4 | 10302003312000 |
5 | 131014404213 |
6 | 11543351320 |
7 | 1662646656 |
oct | 462036600 |
9 | 176865313 |
10 | 80231808 |
11 | 4131a388 |
12 | 22a52540 |
13 | 13811a57 |
14 | a926dd6 |
15 | 709c5c3 |
hex | 4c83d80 |
80231808 has 96 divisors (see below), whose sum is σ = 220118040. Its totient is φ = 25890816.
The previous prime is 80231803. The next prime is 80231819. The reversal of 80231808 is 80813208.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80231803) 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, 709960 + ... + 710072.
Almost surely, 280231808 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 80231808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110059020).
80231808 is an abundant number, since it is smaller than the sum of its proper divisors (139886232).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80231808 is a wasteful number, since it uses less digits than its factorization.
80231808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 216 (or 161 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 30.
The square root of 80231808 is about 8957.2209976086. The cubic root of 80231808 is about 431.3027160090.
The spelling of 80231808 in words is "eighty million, two hundred thirty-one thousand, eight hundred eight".
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