Base | Representation |
---|---|
bin | 1001100011111… |
… | …10100011001000 |
3 | 12120221002121012 |
4 | 10301332203020 |
5 | 131013210440 |
6 | 11543103052 |
7 | 1662526514 |
oct | 461764310 |
9 | 176832535 |
10 | 80210120 |
11 | 41305061 |
12 | 22a41a88 |
13 | 13804c13 |
14 | a91d144 |
15 | 7095e65 |
hex | 4c7e8c8 |
80210120 has 64 divisors (see below), whose sum is σ = 186416640. Its totient is φ = 31046400.
The previous prime is 80210111. The next prime is 80210167. The reversal of 80210120 is 2101208.
It is a junction number, because it is equal to n+sod(n) for n = 80210095 and 80210104.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173009 + ... + 173471.
It is an arithmetic number, because the mean of its divisors is an integer number (2912760).
Almost surely, 280210120 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 80210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93208320).
80210120 is an abundant number, since it is smaller than the sum of its proper divisors (106206520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80210120 is a wasteful number, since it uses less digits than its factorization.
80210120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 606 (or 602 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 80210120 is about 8956.0102724372. The cubic root of 80210120 is about 431.2638497267.
Adding to 80210120 its reverse (2101208), we get a palindrome (82311328).
The spelling of 80210120 in words is "eighty million, two hundred ten thousand, one hundred twenty".
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