Base | Representation |
---|---|
bin | 1001101001011… |
… | …01110100011110 |
3 | 12122021120101110 |
4 | 10310231310132 |
5 | 131204144110 |
6 | 12010322450 |
7 | 2001606531 |
oct | 464556436 |
9 | 178246343 |
10 | 80928030 |
11 | 41755477 |
12 | 23129426 |
13 | 139c6911 |
14 | aa68a18 |
15 | 7188a20 |
hex | 4d2dd1e |
80928030 has 64 divisors (see below), whose sum is σ = 213373440. Its totient is φ = 19552896.
The previous prime is 80928017. The next prime is 80928047. The reversal of 80928030 is 3082908.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10024 + ... + 16196.
It is an arithmetic number, because the mean of its divisors is an integer number (3333960).
Almost surely, 280928030 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 80928030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106686720).
80928030 is an abundant number, since it is smaller than the sum of its proper divisors (132445410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80928030 is a wasteful number, since it uses less digits than its factorization.
80928030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6225.
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 80928030 is about 8996.0007781236. Note that the first 3 decimals coincide. The cubic root of 80928030 is about 432.5466865748.
The spelling of 80928030 in words is "eighty million, nine hundred twenty-eight thousand, thirty".
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