Base | Representation |
---|---|
bin | 1001100100001… |
… | …10001011100101 |
3 | 12120222200111000 |
4 | 10302012023211 |
5 | 131020211011 |
6 | 11543503513 |
7 | 1663016613 |
oct | 462061345 |
9 | 176880430 |
10 | 80241381 |
11 | 413265a0 |
12 | 22a57b99 |
13 | 1381620c |
14 | a92a6b3 |
15 | 70a0356 |
hex | 4c862e5 |
80241381 has 32 divisors (see below), whose sum is σ = 131495040. Its totient is φ = 47952000.
The previous prime is 80241373. The next prime is 80241391. The reversal of 80241381 is 18314208.
It is not a de Polignac number, because 80241381 - 23 = 80241373 is a prime.
It is a super-2 number, since 2×802413812 = 12877358449574322, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80241391) 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, 19831 + ... + 23531.
It is an arithmetic number, because the mean of its divisors is an integer number (4109220).
Almost surely, 280241381 is an apocalyptic number.
It is an amenable number.
80241381 is a deficient number, since it is larger than the sum of its proper divisors (51253659).
80241381 is a wasteful number, since it uses less digits than its factorization.
80241381 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3794 (or 3788 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 27.
The square root of 80241381 is about 8957.7553549983. The cubic root of 80241381 is about 431.3198692088.
Adding to 80241381 its reverse (18314208), we get a palindrome (98555589).
The spelling of 80241381 in words is "eighty million, two hundred forty-one thousand, three hundred eighty-one".
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