Base | Representation |
---|---|
bin | 1001100101101… |
… | …00011111111101 |
3 | 12121100022201200 |
4 | 10302310133331 |
5 | 131042243401 |
6 | 11551530113 |
7 | 1664440002 |
oct | 462643775 |
9 | 177308650 |
10 | 80431101 |
11 | 41446093 |
12 | 22b29939 |
13 | 1388168a |
14 | a9798a9 |
15 | 70db686 |
hex | 4cb47fd |
80431101 has 12 divisors (see below), whose sum is σ = 118148160. Its totient is φ = 52711560.
The previous prime is 80431093. The next prime is 80431111. The reversal of 80431101 is 10113408.
It is not a de Polignac number, because 80431101 - 23 = 80431093 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80431111) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75205 + ... + 76266.
It is an arithmetic number, because the mean of its divisors is an integer number (9845680).
Almost surely, 280431101 is an apocalyptic number.
It is an amenable number.
80431101 is a deficient number, since it is larger than the sum of its proper divisors (37717059).
80431101 is a wasteful number, since it uses less digits than its factorization.
80431101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 151536 (or 151533 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 18.
The square root of 80431101 is about 8968.3388093894. The cubic root of 80431101 is about 431.6595343422.
Adding to 80431101 its reverse (10113408), we get a palindrome (90544509).
The spelling of 80431101 in words is "eighty million, four hundred thirty-one thousand, one hundred one".
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